A206295 (1/6)*A007188(n).

1, 15, 7875, 11142140625, 467812950752090302734375, 202822649430450649753225796950422853099588897705078125

Offset: 1

Author

Clark Kimberling, Feb 05 2012

Keywords

• nonn

Comments

For n>1, a(n) is divisible by the product of the first n odd primes.

Crossrefs

Cf. A007188.

Programs

Mathematica

c[n_] := CoefficientList[(1 + x)^n, x]
f[n_] := Product[Prime[k]^c[n][[k]],
 {k, 1, Length[c[n]]}]
t=Table[f[n], {n, 1, 7}] (* A007188 *)
t/6                      (* A206295 *)