A260670 - cp's OEIS frontend

A260670 Number T(n,k) of permutations of [n] with exactly k (possibly overlapping) occurrences of the generalized pattern 23-1; triangle T(n,k), n>=0, 0<=k<=A125811(n)-1, read by rows.

n	a(n)
0	1
1	1
2	2
3	5
4	1
5	15
6	6
7	3
8	52
9	32
10	23
11	10
12	3
13	203
14	171
15	152
16	98
17	62
18	22
19	11
20	1
21	877
22	944
23	984
24	791
25	624
26	392
27	240
28	111
29	55
30	18
31	4
32	4140
33	5444
34	6460
35	6082
36	5513
37	4302
38	3328
39	2141
40	1393
41	780
42	432
43	187
44	88
45	24
46	6
47	21147
48	32919
49	43626
50	46508
51	46880
52	41979
53	36774

[1, 1, 2, 5, 1, 15, 6, 3, 52, 32, 23, 10, 3, 203, 171, 152, 98, 62, 22, 11, 1, 877, 944, 984, 791, 624, 392, 240, 111, 55, 18, 4, 4140, 5444, 6460, 6082, 5513, 4302, 3328, 2141, 1393, 780, 432, 187, 88, 24, 6, 21147, 32919, 43626, 46508, 46880, 41979, 36774]

cp's OEIS Frontend

A260670 Number T(n,k) of permutations of [n] with exactly k (possibly overlapping) occurrences of the generalized pattern 23-1; triangle T(n,k), n>=0, 0<=k<=A125811(n)-1, read by rows.

Table of values

List of values