a(n) = 2*(n+2)!*(zeta(-2*n)-zeta(-n)), zeta(n) the Riemann zeta function.
A178235
a(n) = 2*(n+2)!*(zeta(-2*n)-zeta(-n)), zeta(n) the Riemann zeta function.
Terms
- a(0) =0a(1) =1a(2) =0a(3) =-2a(4) =0a(5) =40a(6) =0a(7) =-3024a(8) =0a(9) =604800a(10) =0a(11) =-262690560a(12) =0a(13) =217945728000a(14) =0a(16) =0a(18) =0a(20) =0a(22) =0a(24) =0
External references
- oeis: A178235