A291684 - cp's OEIS frontend

A291684 Number T(n,k) of permutations p of [n] such that 0p has a nonincreasing jump sequence beginning with k; triangle T(n,k), n>=0, 0<=k<=n, read by rows.

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	1
6	0
7	1
8	2
9	2
10	0
11	1
12	5
13	5
14	5
15	0
16	1
17	9
18	12
19	14
20	16
21	0
22	1
23	17
24	36
25	36
26	47
27	52
28	0
29	1
30	31
31	81
32	98
33	117
34	166
35	189
36	0
37	1
38	57
39	174
40	327
41	327
42	425
43	627
44	683
45	0
46	1
47	101
48	413
49	788
50	988
51	1116
52	1633
53	2400
54	2621
55	0
56	1
57	185
58	889
59	1890
60	3392
61	3392
62	4291
63	6471
64	9459
65	10061

[1, 0, 1, 0, 1, 1, 0, 1, 2, 2, 0, 1, 5, 5, 5, 0, 1, 9, 12, 14, 16, 0, 1, 17, 36, 36, 47, 52, 0, 1, 31, 81, 98, 117, 166, 189, 0, 1, 57, 174, 327, 327, 425, 627, 683, 0, 1, 101, 413, 788, 988, 1116, 1633, 2400, 2621, 0, 1, 185, 889, 1890, 3392, 3392, 4291, 6471, 9459, 10061]

cp's OEIS Frontend

A291684 Number T(n,k) of permutations p of [n] such that 0p has a nonincreasing jump sequence beginning with k; triangle T(n,k), n>=0, 0<=k<=n, read by rows.

Table of values

List of values