A309993 - cp's OEIS frontend

A309993 Triangle read by rows: T(n,k) is the number of permutations of length n composed of exactly k overlapping adjacent runs (for n >= 1 and 1 <= k <= n).

n	a(n)
1	1
2	1
3	0
4	1
5	2
6	0
7	1
8	8
9	2
10	0
11	1
12	22
13	26
14	0
15	0
16	1
17	52
18	168
19	42
20	0
21	0
22	1
23	114
24	804
25	692
26	42
27	0
28	0
29	1
30	240
31	3270
32	6500
33	1866
34	0
35	0
36	0
37	1
38	494
39	12054
40	46304
41	34078
42	3060
43	0
44	0
45	0
46	1
47	1004
48	41708
49	279566
50	413878
51	122830
52	3060
53	0
54	0
55	0
56	1
57	2026
58	138320
59	1514324

[1, 1, 0, 1, 2, 0, 1, 8, 2, 0, 1, 22, 26, 0, 0, 1, 52, 168, 42, 0, 0, 1, 114, 804, 692, 42, 0, 0, 1, 240, 3270, 6500, 1866, 0, 0, 0, 1, 494, 12054, 46304, 34078, 3060, 0, 0, 0, 1, 1004, 41708, 279566, 413878, 122830, 3060, 0, 0, 0, 1, 2026, 138320, 1514324]

cp's OEIS Frontend

A309993 Triangle read by rows: T(n,k) is the number of permutations of length n composed of exactly k overlapping adjacent runs (for n >= 1 and 1 <= k <= n).

Table of values

List of values