A284823 - cp's OEIS frontend

A284823 Array read by antidiagonals: T(n,k) = number of primitive (aperiodic) palindromes of length n using a maximum of k different symbols (n >= 1, k >= 1).

n	a(n)
1	1
2	2
3	0
4	3
5	0
6	0
7	4
8	0
9	2
10	0
11	5
12	0
13	6
14	2
15	0
16	6
17	0
18	12
19	6
20	6
21	0
22	7
23	0
24	20
25	12
26	24
27	4
28	0
29	8
30	0
31	30
32	20
33	60
34	18
35	14
36	0
37	9
38	0
39	42
40	30
41	120
42	48
43	78
44	12
45	0
46	10
47	0
48	56
49	42
50	210
51	100
52	252
53	72
54	28
55	0
56	11
57	0
58	72
59	56
60	336
61	180
62	620
63	240
64	234
65	24
66	0
67	12
68	0
69	90
70	72
71	504
72	294
73	1290
74	600
75	1008
76	216
77	62

[1, 2, 0, 3, 0, 0, 4, 0, 2, 0, 5, 0, 6, 2, 0, 6, 0, 12, 6, 6, 0, 7, 0, 20, 12, 24, 4, 0, 8, 0, 30, 20, 60, 18, 14, 0, 9, 0, 42, 30, 120, 48, 78, 12, 0, 10, 0, 56, 42, 210, 100, 252, 72, 28, 0, 11, 0, 72, 56, 336, 180, 620, 240, 234, 24, 0, 12, 0, 90, 72, 504, 294, 1290, 600, 1008, 216, 62]

cp's OEIS Frontend

A284823 Array read by antidiagonals: T(n,k) = number of primitive (aperiodic) palindromes of length n using a maximum of k different symbols (n >= 1, k >= 1).

Table of values

List of values