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 A179045 #3 Sep 08 2013 13:31:54 %S A179045 1,2,1,3,1,1,5,2,1,1,7,3,1,1,1,10,4,2,1,1,1,13,5,3,1,1,1,1,18,7,4,2,1, %T A179045 1,1,1,23,9,5,3,1,1,1,1,1,30,12,6,4,2,1,1,1,1,1,37,15,7,5,3,1,1,1,1,1, %U A179045 1,47,19,9,6,4,2,1,1,1,1,1,1,57,23,11,7,5,3,1,1,1,1,1,1,1,70,28,14,8,6,4 %N A179045 Triangle T(n,k), 1<=k<=n, read by rows, related to A033485. %C A179045 Column k=1 : A033485 ; column k=2 : A062188 ; row sums : A102378. %F A179045 T(n,k)=T(n-1,k)+T([n/2],k), T(n,n)=1, T(n,k)=0 if k>n. %e A179045 Triangle begins : 1 ; 2,1 ; 3,1,1 ; 5,2,1,1 ; 7,3,1,1,1 ; ... %Y A179045 Cf. A033485, A062188, A102378 %K A179045 nonn,tabl %O A179045 1,2 %A A179045 _Philippe Deléham_, Jun 26 2010