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 A121366 #10 Oct 18 2024 01:41:51
%S A121366 1,16,2048,2097152,17179869184,1125899906842624,590295810358705651712,
%T A121366 2475880078570760549798248448,83076749736557242056487941267521536,
%U A121366 22300745198530623141535718272648361505980416
%N A121366 a(n) = 2^(n*(3n+5)/2) = 2^A115067(n+1).
%C A121366 Apparently this sequence is the Hankel transform of A098329 = [1, 1, 17, 49, 481, 2081, ...]; example : Det([1]) = 1, Det([1,1 ; 1,17]) = 16, Det([1,1,17 ; 1,17,49 ; 17,49,481]) = 2048, ...
%t A121366 Table[2^(n(3n+5)/2),{n,0,9}] (* _James C. McMahon_, Oct 17 2024 *)
%Y A121366 Cf. A098329, A115067.
%K A121366 nonn
%O A121366 0,2
%A A121366 _Philippe Deléham_, Sep 06 2006