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 A081281 #3 Mar 30 2012 18:58:48
%S A081281 1,1,2,1,4,5,1,6,15,14,1,8,29,54,41,1,10,47,126,189,122,1,12,69,238,
%T A081281 513,648,365,1,14,95,398,1101,1998,2187,1094,1,16,125,614,2057,4788,
%U A081281 7533,7290,3281,1,18,159,894,3501,9858,19899,27702,24057,9842,1,20,197,1246
%N A081281 Square array of binomial transforms of Chebyshev polynomial coefficients.
%C A081281 Square array of binomial transforms of rows of A081277. Rows include A007051, A006234, A081278, A081279, A081280.
%F A081281 Rows have g.f. (1-2x)(1-x)^(n-1)/(1-3x)^(n+1).
%e A081281 Read by antidiagonals, the array appears as {1}, {1,2},{1,4,5}, {1,6,15,14}, {1,8,29,54,41},...
%K A081281 easy,nonn,tabl
%O A081281 0,3
%A A081281 _Paul Barry_, Mar 16 2003