A363809 - cp's OEIS frontend

A363809 Number of permutations of [n] that avoid the patterns 2-41-3, 3-14-2, and 2-1-3-5-4.

n	a(n)
0	1
1	1
2	2
3	6
4	22
5	89
6	378
7	1647
8	7286
9	32574
10	146866
11	667088
12	3050619
13	14039075
14	64992280
15	302546718
16	1415691181
17	6656285609
18	31436228056
19	149079962872
20	709680131574
21	3390269807364
22	16248661836019
23	78109838535141
24	376531187219762
25	1819760165454501

[1, 1, 2, 6, 22, 89, 378, 1647, 7286, 32574, 146866, 667088, 3050619, 14039075, 64992280, 302546718, 1415691181, 6656285609, 31436228056, 149079962872, 709680131574, 3390269807364, 16248661836019, 78109838535141, 376531187219762, 1819760165454501]

cp's OEIS Frontend

A363809 Number of permutations of [n] that avoid the patterns 2-41-3, 3-14-2, and 2-1-3-5-4.

Table of values

List of values