A176163 a(1)=3 and a(n)=Floor[1/(n-1)^2 * a(n-1)^2]

3, 9, 20, 44, 121, 585, 9506, 1844164, 53139700920, 34862071776136405511, 12153640485244865516062665215354311711, 12153640485244865516062665215354311711

Offset

1,1

Links

Table of n, a(n) for n=1..12.

Mathematica

a[1] = 3; a[n_] := Floor[1/(n - 1)^2 a[n - 1]^2]; Table[a [n], {n, 1, 14}]

Crossrefs

Sequence in context: A210634 A295148 A364535 * A203861 A073801 A065891

Adjacent sequences: A176160 A176161 A176162 * A176164 A176165 A176166

Keyword

nonn

Author

José María Grau Ribas, Apr 10 2010

Extensions

f is changed by a José María Grau Ribas, Apr 16 2010

Status

approved