A097591 - cp's OEIS frontend

A097591 Triangle read by rows: T(n,k) is the number of permutations of [n] with exactly k increasing runs of odd length.

n	a(n)
0	1
1	0
2	1
3	1
4	0
5	1
6	0
7	5
8	0
9	1
10	6
11	0
12	17
13	0
14	1
15	0
16	70
17	0
18	49
19	0
20	1
21	90
22	0
23	500
24	0
25	129
26	0
27	1
28	0
29	1890
30	0
31	2828
32	0
33	321
34	0
35	1
36	2520
37	0
38	23100
39	0
40	13930
41	0
42	769
43	0
44	1
45	0
46	83160
47	0
48	215292
49	0
50	62634
51	0
52	1793
53	0
54	1
55	113400
56	0
57	1549800
58	0
59	1697430
60	0
61	264072
62	0
63	4097
64	0
65	1

[1, 0, 1, 1, 0, 1, 0, 5, 0, 1, 6, 0, 17, 0, 1, 0, 70, 0, 49, 0, 1, 90, 0, 500, 0, 129, 0, 1, 0, 1890, 0, 2828, 0, 321, 0, 1, 2520, 0, 23100, 0, 13930, 0, 769, 0, 1, 0, 83160, 0, 215292, 0, 62634, 0, 1793, 0, 1, 113400, 0, 1549800, 0, 1697430, 0, 264072, 0, 4097, 0, 1]

cp's OEIS Frontend

A097591 Triangle read by rows: T(n,k) is the number of permutations of [n] with exactly k increasing runs of odd length.

Table of values

List of values