A135421 a(n) = 5^n*6^(n^2).

1, 30, 32400, 1259712000, 1763193692160000, 88844650093530316800000, 161162887476414617908936704000000, 10524495800322448706290880214277816320000000, 24742299477723936603969643338598393206990805401600000000

Offset

0,2

Comments

Hankel transform of A132865.

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..25

Formula

a(n) = 5^n*6^(n^2) = A000351(n)*A076781(n).

Mathematica

Table[5^n 6^(n^2), {n, 0, 10}] (* Harvey P. Dale, Sep 09 2012 *)

Prog

(Magma) [5^n*6^(n^2): n in [0..10]]; // Vincenzo Librandi, May 30 2011

Crossrefs

Sequence in context: A159373 A006473 A115459 * A028668 A231815 A291995

Adjacent sequences: A135418 A135419 A135420 * A135422 A135423 A135424

Keyword

nonn

Author

Philippe Deléham, Dec 11 2007

Status

approved