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 A157045 #3 Mar 30 2012 18:37:44 %S A157045 1,1,0,1,1,0,1,1,1,0,1,1,2,0,0,1,1,2,2,0,0,1,1,2,3,2,0,0,1,1,2,3,4,1, %T A157045 0,0,1,1,2,3,5,4,1,0,0,1,1,2,3,5,6,5,0,0,0,1,1,2,3,5,7,8,4,0,0,0,1,1, %U A157045 2,3,5,7,10,9,4,0,0,0,1,1,2,3,5,7,11,12,11,3,0,0,0,1,1,2,3,5,7,11,14,16,11 %N A157045 Triangular table: number of partitions of n into exactly n-k parts, each <= n-k. Same as A157044 but with rows reversed. %C A157045 See A157044. Rows approach the partition numbers. %D A157045 George E. Andrews, The Theory of Partitions, Addison-Wesley, Reading, Mass., 1976 (Theorem 1.5). %t A157045 Table[T[n-1,n-k,n-k+2]-T[n-1,n-k-1,n-k+2],{n,1,9},{k,1,n}] with T[n,a,b] as defined in A047993. %Y A157045 Cf. A000041, A157044, A157046, A047993 %K A157045 nonn,tabl %O A157045 1,13 %A A157045 _Wouter Meeussen_, Feb 22 2009