A263776 - cp's OEIS frontend

A263776 Triangle read by rows: T(n,k) (n>=0, 0<=k<=A002620(n-1)) is the number of permutations of [n] with k nestings.

n	a(n)
0	1
1	1
2	2
3	5
4	1
5	14
6	8
7	2
8	42
9	45
10	25
11	7
12	1
13	132
14	220
15	198
16	112
17	44
18	12
19	2
20	429
21	1001
22	1274
23	1092
24	700
25	352
26	140
27	42
28	9
29	1
30	1430
31	4368
32	7280
33	8400
34	7460
35	5392
36	3262
37	1664
38	716
39	256
40	74
41	16
42	2
43	4862
44	18564
45	38556
46	56100
47	63648
48	59670
49	47802
50	33338
51	20466
52	11115

[1, 1, 2, 5, 1, 14, 8, 2, 42, 45, 25, 7, 1, 132, 220, 198, 112, 44, 12, 2, 429, 1001, 1274, 1092, 700, 352, 140, 42, 9, 1, 1430, 4368, 7280, 8400, 7460, 5392, 3262, 1664, 716, 256, 74, 16, 2, 4862, 18564, 38556, 56100, 63648, 59670, 47802, 33338, 20466, 11115]

cp's OEIS Frontend

A263776 Triangle read by rows: T(n,k) (n>=0, 0<=k<=A002620(n-1)) is the number of permutations of [n] with k nestings.

Table of values

List of values