A232998 a(n) = 2^((n+1)^2)*3^(n*(n+1)).

2, 144, 373248, 34828517376, 116997070082015232, 14148730862126934905585664, 61597414834991926584601402260062208, 9654059848037384195421778226918440269760167936, 54470327768942860701549299585257673594965942082487957061632

Offset

0,1

Links

Table of n, a(n) for n=0..8.

Tri Lai, New aspects of regions whose tilings are enumerated by perfect powers, Electronic Journal of Combinatorics, 20(4), 2013, #P31. See Th. 25.

Mathematica

Table[2^((n+1)^2)*3^(n(n+1)), {n, 0, 10}] (* Harvey P. Dale, Apr 26 2014 *)

Crossrefs

Sequence in context: A157073 A304461 A264153 * A103207 A093002 A074319

Adjacent sequences: A232995 A232996 A232997 * A232999 A233000 A233001

Keyword

nonn

Author

N. J. A. Sloane, Dec 17 2013

Extensions

Definition clarified by Harvey P. Dale, Apr 26 2014

Status

approved