a(n) = 18*n^4*(2*n^3 - 23*n^2 + 38*n - 18)^2.
A259364
a(n) = 18*n^4*(2*n^3 - 23*n^2 + 38*n - 18)^2.
Terms
- a(0) =0a(1) =18a(2) =93312a(3) =4737042a(4) =51775488a(5) =263351250a(6) =807055488a(7) =1609827282a(8) =1934917632a(9) =774840978a(10) =691920000a(11) =20514061458a(12) =126428055552a(13) =496767242322
External references
- oeis: A259364