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 A110195 #19 Aug 29 2025 20:54:06
%S A110195 1,1,11,1331,1771561,25937424601,4177248169415651,
%T A110195 7400249944258160101211,144209936106499234037676064081,
%U A110195 30912680532870672635673352936887453361,72890483685103052142902866787761839379440139451,1890591424712781041871514584574319778449301246603238034051
%N A110195 a(n) = 11^((n^2-n)/2).
%C A110195 Sequence given by the Hankel transform (see A001906 for definition) of A082173 = {1, 1, 12, 155, 2124, 30482, 453432, 6936799, ...}; example : det([1, 1, 12, 155; 1, 12, 155, 2124; 12, 155, 2124, 30482; 155, 2124, 30482, 453432]) = 11^6 = 1771561.
%F A110195 a(n+1) is the determinant of n X n matrix M_(i, j) = binomial(11i, j).
%F A110195 a(n) = A001020(A161680(n)).
%t A110195 Table[11^((n^2-n)/2),{n,0,20}] (* _Harvey P. Dale_, Feb 02 2012 *)
%t A110195 Join[{1,1},Table[Det[Table[Binomial[11i,j],{i,n},{j,n}]],{n,10}]] (* _Harvey P. Dale_, Apr 01 2019 *)
%Y A110195 Cf. A001020, A006125, A047656, A053763, A053764, A109345, A109354, A109493, A109966, A110147, A161680.
%K A110195 nonn,easy,changed
%O A110195 0,3
%A A110195 _Philippe Deléham_, Sep 07 2005
%E A110195 a(11) from _Harvey P. Dale_, Feb 02 2012
%E A110195 a(12) from _Jason Yuen_, Aug 29 2025