A180193 - cp's OEIS frontend

A180193 Triangle read by rows: T(n,k) is the number of permutations of [n] having k blocks of odd length (0<=k<=n).

n	a(n)
0	1
1	0
2	1
3	1
4	0
5	1
6	0
7	3
8	0
9	3
10	2
11	0
12	11
13	0
14	11
15	0
16	14
17	0
18	53
19	0
20	53
21	6
22	0
23	96
24	0
25	309
26	0
27	309
28	0
29	78
30	0
31	724
32	0
33	2119
34	0
35	2119
36	24
37	0
38	852
39	0
40	6070
41	0
42	16687
43	0
44	16687
45	0
46	504
47	0
48	9300
49	0
50	56418
51	0
52	148329
53	0
54	148329
55	120
56	0
57	8040
58	0
59	106170
60	0
61	577556
62	0
63	1468457
64	0

[1, 0, 1, 1, 0, 1, 0, 3, 0, 3, 2, 0, 11, 0, 11, 0, 14, 0, 53, 0, 53, 6, 0, 96, 0, 309, 0, 309, 0, 78, 0, 724, 0, 2119, 0, 2119, 24, 0, 852, 0, 6070, 0, 16687, 0, 16687, 0, 504, 0, 9300, 0, 56418, 0, 148329, 0, 148329, 120, 0, 8040, 0, 106170, 0, 577556, 0, 1468457, 0]

cp's OEIS Frontend

A180193 Triangle read by rows: T(n,k) is the number of permutations of [n] having k blocks of odd length (0<=k<=n).

Table of values

List of values