A261781 - cp's OEIS frontend

A261781 Number T(n,k) of compositions of n where each part i is marked with a word of length i over a k-ary alphabet whose letters appear in alphabetical order and all k letters occur at least once in the composition; triangle T(n,k), n >= 0, 0 <= k <= n, read by rows.

n	a(n)
0	1
1	0
2	1
3	0
4	2
5	3
6	0
7	4
8	16
9	13
10	0
11	8
12	66
13	132
14	75
15	0
16	16
17	248
18	924
19	1232
20	541
21	0
22	32
23	892
24	5546
25	13064
26	13060
27	4683
28	0
29	64
30	3136
31	30720
32	114032
33	195020
34	155928
35	47293
36	0
37	128
38	10888
39	162396
40	893490
41	2327960
42	3116220
43	2075948
44	545835

[1, 0, 1, 0, 2, 3, 0, 4, 16, 13, 0, 8, 66, 132, 75, 0, 16, 248, 924, 1232, 541, 0, 32, 892, 5546, 13064, 13060, 4683, 0, 64, 3136, 30720, 114032, 195020, 155928, 47293, 0, 128, 10888, 162396, 893490, 2327960, 3116220, 2075948, 545835]

cp's OEIS Frontend

A261781 Number T(n,k) of compositions of n where each part i is marked with a word of length i over a k-ary alphabet whose letters appear in alphabetical order and all k letters occur at least once in the composition; triangle T(n,k), n >= 0, 0 <= k <= n, read by rows.

Table of values

List of values