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A202236 Number of permutations avoiding the consecutive pattern 35241. 24

%I #7 Mar 30 2012 17:30:04

%S 1,2,6,24,119,708,4916,39008,348202,3453572,37679044,448455648,

%T 5782307134,80291122976,1194530208634,18956382485568,319626461800751,

%U 5706286536509228,107533930423507736,2133112981295131824,44429507242283663790,969465861672912148324

%N Number of permutations avoiding the consecutive pattern 35241.

%C a(n) is the number of permutations on [n] that avoid the consecutive pattern 35241. It is the same as the number of permutations which avoid 14253, 31425 or 52413.

%H Ray Chandler, <a href="/A202236/b202236.txt">Table of n, a(n) for n = 1..40</a>

%H 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 Cf. A177523, A202213-A202235.

%K nonn

%O 1,2

%A _Ray Chandler_, Dec 15 2011

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Last modified April 25 07:07 EDT 2024. Contains 371964 sequences. (Running on oeis4.)