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 A001410 #16 Feb 01 2022 23:56:54 %S A001410 1,2,5,12,28,65,149,341,777,1769,4022,9140,20763,47156,107086,243162, %T A001410 552128,1253640,2846424,6462827,14673824,33316766,75645245,171751292, %U A001410 389958283,885393129,2010268490 %N A001410 Sum of rows of triangle defined in A001404. %C A001410 Also, limit to which the reflected rows of A001404 converge. - _Ralf Stephan_, Oct 17 2004 %p A001410 a[ 0,0 ] := 1; for i from 1 to N do a[ i,0 ] := a[ i-1,0 ]+a[ i-1,1 ]; for j from 1 to i do a[ i,j ] := sum(a[ i-j,t ],t=0..min(j+1,N)) od; od; b[ n ] := sum(a[ n,i ],i=0..n); %Y A001410 Cf. A001404. %K A001410 nonn,easy %O A001410 0,2 %A A001410 _N. J. A. Sloane_