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 A038738 #5 Mar 30 2012 18:56:32 %S A038738 1,1,3,1,5,8,1,7,17,21,1,9,30,50,55,1,11,47,103,138,144,1,13,68,188, %T A038738 314,370,377,1,15,93,313,643,895,979,987,1,17,122,486,1201,1993,2455, %U A038738 2575,2584,1,19,155,715,2080,4082,5798,6590,6755 %N A038738 Path-counting array T(i,j) obtained from array t in A038792 by T(i,j)=t(2i+1,j). %C A038738 T(n,n)=A001906(n) for n >= 0 (even-indexed Fibonacci numbers). %C A038738 Row sums: A030267. %e A038738 Rows: {1}; {1,3}; {1,5,8}; {1,7,17,21}; ... %K A038738 nonn,tabl %O A038738 1,3 %A A038738 _Clark Kimberling_, May 02 2000