G.f. of the z^2 coefficients of the FP1 in the third column of the A156921 matrix.
A156929
G.f. of the z^2 coefficients of the FP1 in the third column of the A156921 matrix.
Terms
- a(0) =-6a(1) =-79a(2) =-515a(3) =-2255a(4) =-7321a(5) =-17280a(6) =-20052a(7) =73530a(8) =683280a(9) =3482667a(10) =14574887a(11) =55023247a(12) =194872885a(13) =661036370a(14) =2174736558a(15) =6996176016a(16) =22133771190a(17) =69145507605a(18) =213941135265a(19) =657095902685
External references
- oeis: A156929