A229160 - cp's OEIS frontend

A229160 Triangle T(n,k) read by rows: T(n,k) = number of permutations on 123...n with exactly one cab pattern and no aj pattern with j<=k, for n>=0, 0<=k<=n.

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	1
7	1
8	0
9	0
10	5
11	5
12	2
13	0
14	0
15	21
16	21
17	11
18	3
19	0
20	0
21	84
22	84
23	49
24	19
25	4
26	0
27	0
28	330
29	330
30	204
31	92
32	29
33	5
34	0
35	0
36	1287
37	1287
38	825
39	405
40	153
41	41
42	6
43	0
44	0
45	5005
46	5005
47	3289
48	1705
49	715
50	235
51	55
52	7
53	0
54	0
55	19448
56	19448
57	13013
58	7007
59	3146
60	1166
61	341
62	71
63	8
64	0
65	0

[0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 5, 5, 2, 0, 0, 21, 21, 11, 3, 0, 0, 84, 84, 49, 19, 4, 0, 0, 330, 330, 204, 92, 29, 5, 0, 0, 1287, 1287, 825, 405, 153, 41, 6, 0, 0, 5005, 5005, 3289, 1705, 715, 235, 55, 7, 0, 0, 19448, 19448, 13013, 7007, 3146, 1166, 341, 71, 8, 0, 0]

cp's OEIS Frontend

A229160 Triangle T(n,k) read by rows: T(n,k) = number of permutations on 123...n with exactly one cab pattern and no aj pattern with j<=k, for n>=0, 0<=k<=n.

Table of values

List of values