A284873 - cp's OEIS frontend

A284873 Array read by antidiagonals: T(n,k) = number of double palindromes of length n using a maximum of k different symbols.

n	a(n)
1	1
2	2
3	1
4	3
5	4
6	1
7	4
8	9
9	8
10	1
11	5
12	16
13	21
14	16
15	1
16	6
17	25
18	40
19	57
20	32
21	1
22	7
23	36
24	65
25	136
26	123
27	52
28	1
29	8
30	49
31	96
32	265
33	304
34	279
35	100
36	1
37	9
38	64
39	133
40	456
41	605
42	880
43	549
44	160
45	1
46	10
47	81
48	176
49	721
50	1056
51	2125
52	1768
53	1209
54	260
55	1
56	11
57	100
58	225
59	1072
60	1687
61	4356
62	4345
63	4936
64	2127
65	424
66	1

[1, 2, 1, 3, 4, 1, 4, 9, 8, 1, 5, 16, 21, 16, 1, 6, 25, 40, 57, 32, 1, 7, 36, 65, 136, 123, 52, 1, 8, 49, 96, 265, 304, 279, 100, 1, 9, 64, 133, 456, 605, 880, 549, 160, 1, 10, 81, 176, 721, 1056, 2125, 1768, 1209, 260, 1, 11, 100, 225, 1072, 1687, 4356, 4345, 4936, 2127, 424, 1]

cp's OEIS Frontend

A284873 Array read by antidiagonals: T(n,k) = number of double palindromes of length n using a maximum of k different symbols.

Table of values

List of values