A121913 a(n) = 2^(n*(2*n+3)) = 2^A014106(n).

1, 32, 16384, 134217728, 17592186044416, 36893488147419103232, 1237940039285380274899124224, 664613997892457936451903530140172288, 5708990770823839524233143877797980545530986496

Offset: 0

Author

Philippe Deléham, Sep 02 2006

Keywords

• nonn
• easy

Comments

Apparently the Hankel transform of A098441 = [1, 1, 33, 97, 1729, 8001, 105441, 627873, ...].

Hankel transform of A098430. - Philippe Deléham, Mar 01 2009

Examples

			Det(1) = 1; Det(1,1; 1,33) = 32; Det(1,1,33; 1,33,97; 33,97,1729) = 16384; ...
		

Links

• Vincenzo Librandi, Table of n, a(n) for n = 0..40

Crossrefs

Cf. A098430, A098441.

Programs

Magma

[2^(n*(2*n+3)): n in [0..10]]; // Vincenzo Librandi, Jul 05 2011

Maple

A121913:=n->2^(n*(2*n+3)); seq(A121913(k),k=0..20); # Wesley Ivan Hurt, Oct 24 2013

Mathematica

Table[2^(n(2n+3)), {n,0,20}] (* Wesley Ivan Hurt, Oct 24 2013 *)

PARI

vector(20, n, n--; 2^(n*(2*n+3))) \\ G. C. Greubel, Oct 08 2018