A104002 - cp's OEIS frontend

A104002 Triangle T(n,k) read by rows: number of permutations in S_n avoiding all k-length patterns that start with 1 except one fixed pattern and containing it exactly once.

n	a(n)
2	1
3	2
4	1
5	3
6	4
7	1
8	4
9	12
10	6
11	1
12	5
13	32
14	27
15	8
16	1
17	6
18	80
19	108
20	48
21	10
22	1
23	7
24	192
25	405
26	256
27	75
28	12
29	1
30	8
31	448
32	1458
33	1280
34	500
35	108
36	14
37	1
38	9
39	1024
40	5103
41	6144
42	3125
43	864
44	147
45	16
46	1
47	10
48	2304
49	17496
50	28672
51	18750
52	6480
53	1372
54	192
55	18
56	1
57	11
58	5120
59	59049
60	131072

[1, 2, 1, 3, 4, 1, 4, 12, 6, 1, 5, 32, 27, 8, 1, 6, 80, 108, 48, 10, 1, 7, 192, 405, 256, 75, 12, 1, 8, 448, 1458, 1280, 500, 108, 14, 1, 9, 1024, 5103, 6144, 3125, 864, 147, 16, 1, 10, 2304, 17496, 28672, 18750, 6480, 1372, 192, 18, 1, 11, 5120, 59049, 131072]

cp's OEIS Frontend

A104002 Triangle T(n,k) read by rows: number of permutations in S_n avoiding all k-length patterns that start with 1 except one fixed pattern and containing it exactly once.

Table of values

List of values