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 A167977 #5 Mar 31 2012 13:23:39 %S A167977 1,2,4,2,5,6,3,5,7,6,3,6,7,7,8,3,6,8,7,9,8,4,6,8,8,9,9,9,4,7,8,8,10,9, %T A167977 10,8,4,7,9,8,10,10,10,9,10 %N A167977 Triangle A161511(A167979(n,k)). %C A167977 Note that the values of this triangle identify the number partitioned described in A125105 and A161924. %e A167977 The triangle A167979 begins %e A167977 1 %e A167977 2..6 %e A167977 3..10..12 %e A167977 so mapping each value with A161511 generates this triangle here, which begins %e A167977 1 %e A167977 2..4 %e A167977 2..5..6 %Y A167977 Cf. A125106, A161924, A161511, A167979 %K A167977 nonn,tabl %O A167977 1,2 %A A167977 _Alford Arnold_, Nov 24 2009