This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A121913 #23 Sep 08 2022 08:45:27
%S A121913 1,32,16384,134217728,17592186044416,36893488147419103232,
%T A121913 1237940039285380274899124224,664613997892457936451903530140172288,
%U A121913 5708990770823839524233143877797980545530986496
%N A121913 a(n) = 2^(n*(2*n+3)) = 2^A014106(n).
%C A121913 Apparently the Hankel transform of A098441 = [1, 1, 33, 97, 1729, 8001, 105441, 627873, ...].
%C A121913 Hankel transform of A098430. - _Philippe Deléham_, Mar 01 2009
%H A121913 Vincenzo Librandi, <a href="/A121913/b121913.txt">Table of n, a(n) for n = 0..40</a>
%e A121913 Det(1) = 1; Det(1,1; 1,33) = 32; Det(1,1,33; 1,33,97; 33,97,1729) = 16384; ...
%p A121913 A121913:=n->2^(n*(2*n+3)); seq(A121913(k),k=0..20); # _Wesley Ivan Hurt_, Oct 24 2013
%t A121913 Table[2^(n(2n+3)), {n,0,20}] (* _Wesley Ivan Hurt_, Oct 24 2013 *)
%o A121913 (Magma) [2^(n*(2*n+3)): n in [0..10]]; // _Vincenzo Librandi_, Jul 05 2011
%o A121913 (PARI) vector(20, n, n--; 2^(n*(2*n+3))) \\ _G. C. Greubel_, Oct 08 2018
%Y A121913 Cf. A098430, A098441.
%K A121913 nonn,easy
%O A121913 0,2
%A A121913 _Philippe Deléham_, Sep 02 2006