Matrix t2*K(2) in Subspace 42 with Dimension 14

(K(2) is the second-order Grosse operator)

(-53*t*U)/12 (24*(1 - I*Sqrt[3])*t^2 + I*(11*I + Sqrt[3])*U^2)/24 0 -(Sqrt[2]*(3*I + Sqrt[3])*t^2)/3 ((6*I + Sqrt[3])*t*U)/(6*Sqrt[2]) 0 ((-3*I + Sqrt[3])*t*U)/(4*Sqrt[2]) ((-3*I + Sqrt[3])*t*U)/(12*Sqrt[2]) (Sqrt[2/3] + I*Sqrt[2])*t^2 ((-3*I + Sqrt[3])*t*U)/3 ((-7 + (9*I)*Sqrt[3])*t*U)/(6*Sqrt[2]) ((1 + I*Sqrt[3])*U^2)/(6*Sqrt[2]) -((-18*I + Sqrt[3])*t*U)/12 (-8*(-3*I + Sqrt[3])*t^2 + 3*(3*I + Sqrt[3])*U^2)/24
(24*(1 + I*Sqrt[3])*t^2 + (-11 - I*Sqrt[3])*U^2)/24 (-41*t*U)/12 ((3*I + Sqrt[3])*t*U)/12 ((-3*I + 2*Sqrt[3])*t*U)/(3*Sqrt[2]) 0 -((3*I + 4*Sqrt[3])*t*U)/(6*Sqrt[2]) -(((-3*I + Sqrt[3])*t^2)/Sqrt[2]) ((3*I + Sqrt[3])*t^2)/Sqrt[2] ((-3*I + 2*Sqrt[3])*t*U)/(6*Sqrt[2]) ((-3*I + Sqrt[3])*U^2)/12 ((-6 - (6*I)*Sqrt[3])*t^2 + I*(I + Sqrt[3])*U^2)/(3*Sqrt[2]) ((-1 + (9*I)*Sqrt[3])*t*U)/(6*Sqrt[2]) -((-3*I + Sqrt[3])*U^2)/24 ((15*I - 2*Sqrt[3])*t*U)/12
0 ((-3*I + Sqrt[3])*t*U)/12 -4*t*U ((1 + I*Sqrt[3])*t*U)/Sqrt[2] -(U^2/Sqrt[2]) ((3 - I*Sqrt[3])*t*U)/(2*Sqrt[2]) 0 0 0 0 0 ((-3*I + Sqrt[3])*t*U)/(3*Sqrt[2]) 0 ((3*I)/4)*(I + Sqrt[3])*t*U
-(Sqrt[2]*(-3*I + Sqrt[3])*t^2)/3 ((3*I + 2*Sqrt[3])*t*U)/(3*Sqrt[2]) ((1 - I*Sqrt[3])*t*U)/Sqrt[2] (-9*t*U)/2 (I/4)*(I + Sqrt[3])*U^2 0 -2*t^2 (-1 + I*Sqrt[3])*t^2 t*U 0 (-2*I + 2/Sqrt[3])*t^2 ((-3*I + Sqrt[3])*t*U)/3 0 (t*U)/Sqrt[2]
((-6*I + Sqrt[3])*t*U)/(6*Sqrt[2]) 0 -(U^2/Sqrt[2]) (-I/4)*(-I + Sqrt[3])*U^2 -3*t*U 0 ((3 + I*Sqrt[3])*t*U)/4 ((3 + I*Sqrt[3])*t*U)/4 0 ((1 + I*Sqrt[3])*t*U)/Sqrt[2] -((3*I + Sqrt[3])*t*U)/6 0 (3*t*U)/(2*Sqrt[2]) 0
0 ((3*I - 4*Sqrt[3])*t*U)/(6*Sqrt[2]) ((3 + I*Sqrt[3])*t*U)/(2*Sqrt[2]) 0 0 -4*t*U (I/4)*(I + Sqrt[3])*U^2 U^2/2 ((-3*I)/2)*Sqrt[3]*t*U 0 0 ((-3*I + Sqrt[3])*t*U)/6 0 -(t*U)/(2*Sqrt[2])
((3*I + Sqrt[3])*t*U)/(4*Sqrt[2]) -(((3*I + Sqrt[3])*t^2)/Sqrt[2]) 0 -2*t^2 ((3 - I*Sqrt[3])*t*U)/4 (-I/4)*(-I + Sqrt[3])*U^2 -5*t*U (-I/2)*(-4*I + Sqrt[3])*t*U (8*t^2 + I*(I + Sqrt[3])*U^2)/4 (t*U)/Sqrt[2] 0 0 (3*(1 + I*Sqrt[3])*t*U)/(4*Sqrt[2]) ((1 + I*Sqrt[3])*t^2)/Sqrt[2]
((3*I + Sqrt[3])*t*U)/(12*Sqrt[2]) ((-3*I + Sqrt[3])*t^2)/Sqrt[2] 0 (-1 - I*Sqrt[3])*t^2 ((3 - I*Sqrt[3])*t*U)/4 U^2/2 (I/2)*(4*I + Sqrt[3])*t*U -5*t*U ((4 + (4*I)*Sqrt[3])*t^2 + (1 - I*Sqrt[3])*U^2)/4 (t*(Sqrt[2]*U + I*Sqrt[6]*U))/4 ((3*I + Sqrt[3])*t*U)/6 0 (((-3*I)/4)*(-I + Sqrt[3])*t*U)/Sqrt[2] (I*(I + Sqrt[3])*t^2)/Sqrt[2]
(Sqrt[2/3] - I*Sqrt[2])*t^2 ((3*I + 2*Sqrt[3])*t*U)/(6*Sqrt[2]) 0 t*U 0 ((3*I)/2)*Sqrt[3]*t*U (8*t^2 + (-1 - I*Sqrt[3])*U^2)/4 ((4 - (4*I)*Sqrt[3])*t^2 + (1 + I*Sqrt[3])*U^2)/4 -5*t*U 0 (2*I - 2/Sqrt[3])*t^2 ((-3*I + Sqrt[3])*t*U)/6 0 (t*U)/(2*Sqrt[2])
((3*I + Sqrt[3])*t*U)/3 ((3*I + Sqrt[3])*U^2)/12 0 0 ((1 - I*Sqrt[3])*t*U)/Sqrt[2] 0 (t*U)/Sqrt[2] (t*(Sqrt[2]*U - I*Sqrt[6]*U))/4 0 -5*t*U ((-3*I + 5*Sqrt[3])*t*U)/(6*Sqrt[2]) -((3*I + Sqrt[3])*U^2)/(6*Sqrt[2]) (I/2)*(I + Sqrt[3])*t*U ((1 + I*Sqrt[3])*U^2)/4
((-7 - (9*I)*Sqrt[3])*t*U)/(6*Sqrt[2]) ((6*I)*(I + Sqrt[3])*t^2 + (-1 - I*Sqrt[3])*U^2)/(3*Sqrt[2]) 0 (2*I + 2/Sqrt[3])*t^2 -((-3*I + Sqrt[3])*t*U)/6 0 0 ((-3*I + Sqrt[3])*t*U)/6 (-2*(3*I + Sqrt[3])*t^2)/3 ((3*I + 5*Sqrt[3])*t*U)/(6*Sqrt[2]) (-23*t*U)/6 (I/12)*(5*I + Sqrt[3])*U^2 ((9*I + Sqrt[3])*t*U)/(6*Sqrt[2]) (Sqrt[2/3] - I*Sqrt[2])*t^2
((1 - I*Sqrt[3])*U^2)/(6*Sqrt[2]) ((-1 - (9*I)*Sqrt[3])*t*U)/(6*Sqrt[2]) ((3*I + Sqrt[3])*t*U)/(3*Sqrt[2]) ((3*I + Sqrt[3])*t*U)/3 0 ((3*I + Sqrt[3])*t*U)/6 0 0 ((3*I + Sqrt[3])*t*U)/6 -((-3*I + Sqrt[3])*U^2)/(6*Sqrt[2]) (-I/12)*(-5*I + Sqrt[3])*U^2 (-29*t*U)/6 -((-3*I + Sqrt[3])*U^2)/(6*Sqrt[2]) ((3*I + 5*Sqrt[3])*t*U)/(6*Sqrt[2])
-((18*I + Sqrt[3])*t*U)/12 -((3*I + Sqrt[3])*U^2)/24 0 0 (3*t*U)/(2*Sqrt[2]) 0 (3*(1 - I*Sqrt[3])*t*U)/(4*Sqrt[2]) (((3*I)/4)*(I + Sqrt[3])*t*U)/Sqrt[2] 0 -(t*(U + I*Sqrt[3]*U))/2 ((-9*I + Sqrt[3])*t*U)/(6*Sqrt[2]) -((3*I + Sqrt[3])*U^2)/(6*Sqrt[2]) (-21*t*U)/4 (I/8)*(3*I + Sqrt[3])*U^2
(-8*(3*I + Sqrt[3])*t^2 + 3*(-3*I + Sqrt[3])*U^2)/24 -((15*I + 2*Sqrt[3])*t*U)/12 ((-3*I)/4)*(-I + Sqrt[3])*t*U (t*U)/Sqrt[2] 0 -(t*U)/(2*Sqrt[2]) ((1 - I*Sqrt[3])*t^2)/Sqrt[2] ((-1 - I*Sqrt[3])*t^2)/Sqrt[2] (t*U)/(2*Sqrt[2]) ((1 - I*Sqrt[3])*U^2)/4 (Sqrt[2/3] + I*Sqrt[2])*t^2 ((-3*I + 5*Sqrt[3])*t*U)/(6*Sqrt[2]) (-I/8)*(-3*I + Sqrt[3])*U^2 (-23*t*U)/4