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Number of permutations of [n] with exactly five (possibly overlapping) occurrences of the consecutive pattern 3412.
2

%I #4 Nov 13 2015 20:24:39

%S 1,150,17956,1354134,74605701,3373438200,134999600212,5013535378432,

%T 178086394182356,6171760208699812,211481116147026848,

%U 7230935446550288908,248287682074519332846,8600459778995519305416,301511114563838537243472,10722994509016940787519096

%N Number of permutations of [n] with exactly five (possibly overlapping) occurrences of the consecutive pattern 3412.

%H Alois P. Heinz, <a href="/A264324/b264324.txt">Table of n, a(n) for n = 12..180</a>

%Y Column k=5 of A264319.

%K nonn

%O 12,2

%A _Alois P. Heinz_, Nov 11 2015