A264328 - OEIS

%I #4 Nov 13 2015 20:18:51

%S 1,674,2303616,973634586,268005993787,51887116335484,7600128199862568,

%T 895722436144355244,89201027054224688321,7802920098962657368730,

%U 618120919239542449482268,45404526954279222716028042,3149675297814422746286790949,209262784249053678340807305608

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

%H Alois P. Heinz, <a href="/A264328/b264328.txt">Table of n, a(n) for n = 20..180</a>

%Y Column k=9 of A264319.

%K nonn

%O 20,2

%A _Alois P. Heinz_, Nov 11 2015