A264319 - cp's OEIS frontend

A264319 Number T(n,k) of permutations of [n] with exactly k (possibly overlapping) occurrences of the consecutive pattern 3412; triangle T(n,k), n>=0, 0<=k<=max(0,floor(n/2-1)), read by rows.

n	a(n)
0	1
1	1
2	2
3	6
4	23
5	1
6	110
7	10
8	631
9	88
10	1
11	4223
12	794
13	23
14	32301
15	7639
16	379
17	1
18	277962
19	79164
20	5706
21	48
22	2657797
23	885128
24	84354
25	1520
26	1
27	27954521
28	10657588
29	1266150
30	38452
31	89
32	320752991
33	137752283
34	19621124
35	869740
36	5461
37	1
38	3987045780
39	1904555934
40	316459848

[1, 1, 2, 6, 23, 1, 110, 10, 631, 88, 1, 4223, 794, 23, 32301, 7639, 379, 1, 277962, 79164, 5706, 48, 2657797, 885128, 84354, 1520, 1, 27954521, 10657588, 1266150, 38452, 89, 320752991, 137752283, 19621124, 869740, 5461, 1, 3987045780, 1904555934, 316459848]

cp's OEIS Frontend

A264319 Number T(n,k) of permutations of [n] with exactly k (possibly overlapping) occurrences of the consecutive pattern 3412; triangle T(n,k), n>=0, 0<=k<=max(0,floor(n/2-1)), read by rows.

Table of values

List of values