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 A299699 #10 Feb 23 2018 22:13:44 %S A299699 1,4,13,50,179,744,2975,13020,57215,265172,1245355 %N A299699 Number of rim-hook (or border-strip) tableaux of size n. %C A299699 A rim-hook tableau is a generalized Young tableau in which all columns and rows are weakly decreasing and all regions are connected border-strips. %D A299699 Richard P. Stanley, Enumerative Combinatorics Volume 2, Cambridge University Press, 1999, Chapter 7.17. %H A299699 Wikipedia, <a href="https://en.wikipedia.org/wiki/Murnaghan%E2%80%93Nakayama_rule">Murnaghan-Nakayama rule</a> %e A299699 The a(3) = 13 tableaux: %e A299699 3 2 2 1 3 2 3 1 2 2 2 1 1 1 3 2 1 2 2 1 2 1 1 1 1 1 %e A299699 2 2 1 1 1 2 1 2 1 %e A299699 1 1 1 1 %Y A299699 Cf. A000085, A063834, A138178, A153452, A296150, A296188, A296561. %K A299699 nonn,more %O A299699 1,2 %A A299699 _Gus Wiseman_, Feb 16 2018