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 A065429 #4 Jun 07 2015 15:08:59 %S A065429 0,0,1,7,50,371,3023,26962,263503,2806759,32439638,404794391, %T A065429 5429249279,77941628854,1193095348531,19406686847167,334372746780002, %U A065429 6085085617645595,116659595136911903,2350442395504338154,49658877772798776295,1097945956312067172727 %N A065429 Number of permutations of {1..n} which contain 3 consecutive terms in increasing order. %H A065429 Alois P. Heinz, <a href="/A065429/b065429.txt">Table of n, a(n) for n = 1..450</a> %e A065429 a(3)=1 since 1,2,3 is only solution. %Y A065429 Equals n! - A049774(n). %K A065429 nonn %O A065429 1,4 %A A065429 Joe Keane (jgk(AT)jgk.org), Nov 16 2001