A084249 - cp's OEIS frontend

A084249 Triangle T(n,k) read by rows: permutations on 123...n with one abc pattern and no aj pattern with j<=k, n>2, k

n	a(n)
3	1
4	6
5	2
6	27
7	12
8	3
9	110
10	55
11	19
12	4
13	429
14	229
15	91
16	27
17	5
18	1638
19	912
20	393
21	136
22	36
23	6
24	6188
25	3549
26	1614
27	612
28	191
29	46
30	7
31	23256
32	13636
33	6447
34	2601
35	897
36	257
37	57
38	8
39	87210
40	52020
41	25332
42	10695
43	3951
44	1260
45	335
46	69
47	9
48	326876
49	197676
50	98532

[1, 6, 2, 27, 12, 3, 110, 55, 19, 4, 429, 229, 91, 27, 5, 1638, 912, 393, 136, 36, 6, 6188, 3549, 1614, 612, 191, 46, 7, 23256, 13636, 6447, 2601, 897, 257, 57, 8, 87210, 52020, 25332, 10695, 3951, 1260, 335, 69, 9, 326876, 197676, 98532]

cp's OEIS Frontend

A084249 Triangle T(n,k) read by rows: permutations on 123...n with one abc pattern and no aj pattern with j<=k, n>2, k

Table of values

List of values