A278986 - cp's OEIS frontend

A278986 Array read by antidiagonals downwards: T(b,n) = number of words of length n over an alphabet of size b that are in standard order and which have the property that at least one letter is repeated.

n	a(n)
1	0
2	1
3	0
4	1
5	1
6	0
7	1
8	4
9	1
10	0
11	1
12	8
13	4
14	1
15	0
16	1
17	16
18	14
19	4
20	1
21	0
22	1
23	32
24	41
25	14
26	4
27	1
28	0
29	1
30	64
31	122
32	51
33	14
34	4
35	1
36	0
37	1
38	128
39	365
40	187
41	51
42	14
43	4
44	1
45	0
46	1
47	256
48	1094
49	715
50	202
51	51
52	14
53	4
54	1
55	0
56	1
57	512
58	3281
59	2795
60	855
61	202
62	51
63	14
64	4
65	1
66	0
67	1
68	1024
69	9842
70	11051
71	3845
72	876
73	202
74	51
75	14
76	4
77	1

[0, 1, 0, 1, 1, 0, 1, 4, 1, 0, 1, 8, 4, 1, 0, 1, 16, 14, 4, 1, 0, 1, 32, 41, 14, 4, 1, 0, 1, 64, 122, 51, 14, 4, 1, 0, 1, 128, 365, 187, 51, 14, 4, 1, 0, 1, 256, 1094, 715, 202, 51, 14, 4, 1, 0, 1, 512, 3281, 2795, 855, 202, 51, 14, 4, 1, 0, 1, 1024, 9842, 11051, 3845, 876, 202, 51, 14, 4, 1]

cp's OEIS Frontend

A278986 Array read by antidiagonals downwards: T(b,n) = number of words of length n over an alphabet of size b that are in standard order and which have the property that at least one letter is repeated.

Table of values

List of values