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 A202224 #6 Mar 30 2012 17:30:01 %S A202224 1,2,6,24,119,708,4914,38980,347837,3448792,37614098,447530960, %T A202224 5768427763,80071232808,1190854748337,18891645882204,318426891675529, %U A202224 5682942507677216,107057693682517823,2122945762085834896,44202742291011618712,964190646266565855612 %N A202224 Number of permutations avoiding the consecutive pattern 42351. %C A202224 a(n) is the number of permutations on [n] that avoid the consecutive pattern 42351. It is the same as the number of permutations which avoid 15324, 24315 or 51342. %H A202224 Ray Chandler, <a href="/A202224/b202224.txt">Table of n, a(n) for n = 1..40</a> %H A202224 A. Baxter, B. Nakamura, and D. Zeilberger. <a href="http://www.math.rutgers.edu/~zeilberg/mamarim/mamarimhtml/auto.html">Automatic generation of theorems and proofs on enumerating consecutive Wilf-classes</a> %Y A202224 Cf. A177523, A202213-A202236. %K A202224 nonn %O A202224 1,2 %A A202224 _Ray Chandler_, Dec 15 2011