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 A087929 #4 Mar 31 2012 12:35:01 %S A087929 128,1929117696,1370418864769445888,5359457796069778002771306240 %N A087929 Number of ways of arranging the numbers 1 ... 8n into an 8 X n array so there is exactly one local maximum. %Y A087929 A row of the array in A087783. Cf. A007846. %K A087929 nonn %O A087929 1,1 %A A087929 _R. H. Hardin_, Oct 27 2003