A261780 - cp's OEIS frontend

A261780 Number A(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; square array A(n,k), n>=0, k>=0, read by antidiagonals.

n	a(n)
0	1
1	1
2	0
3	1
4	1
5	0
6	1
7	2
8	2
9	0
10	1
11	3
12	7
13	4
14	0
15	1
16	4
17	15
18	24
19	8
20	0
21	1
22	5
23	26
24	73
25	82
26	16
27	0
28	1
29	6
30	40
31	164
32	354
33	280
34	32
35	0
36	1
37	7
38	57
39	310
40	1031
41	1716
42	956
43	64
44	0
45	1
46	8
47	77
48	524
49	2395
50	6480
51	8318
52	3264
53	128
54	0
55	1
56	9
57	100
58	819
59	4803
60	18501
61	40728
62	40320
63	11144
64	256
65	0

[1, 1, 0, 1, 1, 0, 1, 2, 2, 0, 1, 3, 7, 4, 0, 1, 4, 15, 24, 8, 0, 1, 5, 26, 73, 82, 16, 0, 1, 6, 40, 164, 354, 280, 32, 0, 1, 7, 57, 310, 1031, 1716, 956, 64, 0, 1, 8, 77, 524, 2395, 6480, 8318, 3264, 128, 0, 1, 9, 100, 819, 4803, 18501, 40728, 40320, 11144, 256, 0]

cp's OEIS Frontend

A261780 Number A(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; square array A(n,k), n>=0, k>=0, read by antidiagonals.

Table of values

List of values