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 A228674 #5 Aug 29 2013 23:37:36 %S A228674 1,0,0,0,0,0,0,3431,12868,22878,38894,63646,100774,155038,399072959, %T A228674 3291371293,17874723750,70661650187,242176782370,762243414933, %U A228674 2264604983536,478557413505138,6864733462145388,61394054827641855,435803138222232998,2588994595597226565 %N A228674 Number of permutations of [n] having a shortest ascending run of length 7. %H A228674 Alois P. Heinz, <a href="/A228674/b228674.txt">Table of n, a(n) for n = 7..100</a> %Y A228674 Column k=7 of A064315. %K A228674 nonn %O A228674 7,8 %A A228674 _Alois P. Heinz_, Aug 29 2013