Fifth column of triangle A075498.
A075515
Fifth column of triangle A075498.
Terms
- a(0) =1a(1) =45a(2) =1260a(3) =28350a(4) =563031a(5) =10333575a(6) =179866170a(7) =3016747800a(8) =49263275061a(9) =788796913905
External references
- oeis: A075515
A075515
Fifth column of triangle A075498.