A368290 - cp's OEIS frontend

A368290 a(n) is the length of the longest palindromic subsequence at symmetrically-spaced indices ending at a(n-1); a(1)=1.

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	1
7	3
8	3
9	2
10	5
11	1
12	7
13	1
14	6
15	1
16	6
17	3
18	5
19	5
20	2
21	4
22	1
23	7
24	4
25	2
26	9
27	1
28	11
29	1
30	6
31	5
32	4
33	5
34	4
35	3
36	7
37	3
38	9
39	5
40	6
41	7
42	7
43	7
44	5
45	9
46	6
47	5
48	7
49	5
50	5
51	8
52	1
53	11
54	6
55	7
56	7
57	9
58	10
59	1
60	9
61	9
62	6
63	9
64	6
65	11
66	7
67	13
68	1
69	12
70	1
71	14
72	1
73	16
74	1
75	17
76	1
77	19
78	1
79	14
80	7
81	9
82	7
83	11

[1, 1, 2, 1, 3, 1, 3, 3, 2, 5, 1, 7, 1, 6, 1, 6, 3, 5, 5, 2, 4, 1, 7, 4, 2, 9, 1, 11, 1, 6, 5, 4, 5, 4, 3, 7, 3, 9, 5, 6, 7, 7, 7, 5, 9, 6, 5, 7, 5, 5, 8, 1, 11, 6, 7, 7, 9, 10, 1, 9, 9, 6, 9, 6, 11, 7, 13, 1, 12, 1, 14, 1, 16, 1, 17, 1, 19, 1, 14, 7, 9, 7, 11]

cp's OEIS Frontend

A368290 a(n) is the length of the longest palindromic subsequence at symmetrically-spaced indices ending at a(n-1); a(1)=1.

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	1
7	3
8	3
9	2
10	5
11	1
12	7
13	1
14	6
15	1
16	6
17	3
18	5
19	5
20	2
21	4
22	1
23	7
24	4
25	2
26	9
27	1
28	11
29	1
30	6
31	5
32	4
33	5
34	4
35	3
36	7
37	3
38	9
39	5
40	6
41	7
42	7
43	7
44	5
45	9
46	6
47	5
48	7
49	5
50	5
51	8
52	1
53	11
54	6
55	7
56	7
57	9
58	10
59	1
60	9
61	9
62	6
63	9
64	6
65	11
66	7
67	13
68	1
69	12
70	1
71	14
72	1
73	16
74	1
75	17
76	1
77	19
78	1
79	14
80	7
81	9
82	7
83	11

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	1
7	3
8	3
9	2
10	5
11	1
12	7
13	1
14	6
15	1
16	6
17	3
18	5
19	5
20	2
21	4
22	1
23	7
24	4
25	2
26	9
27	1
28	11
29	1
30	6
31	5
32	4
33	5
34	4
35	3
36	7
37	3
38	9
39	5
40	6
41	7
42	7
43	7
44	5
45	9
46	6
47	5
48	7
49	5
50	5
51	8
52	1
53	11
54	6
55	7
56	7
57	9
58	10
59	1
60	9
61	9
62	6
63	9
64	6
65	11
66	7
67	13
68	1
69	12
70	1
71	14
72	1
73	16
74	1
75	17
76	1
77	19
78	1
79	14
80	7
81	9
82	7
83	11

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	1
7	3
8	3
9	2
10	5
11	1
12	7
13	1
14	6
15	1
16	6
17	3
18	5
19	5
20	2
21	4
22	1
23	7
24	4
25	2
26	9
27	1
28	11
29	1
30	6
31	5
32	4
33	5
34	4
35	3
36	7
37	3
38	9
39	5
40	6
41	7
42	7
43	7
44	5
45	9
46	6
47	5
48	7
49	5
50	5
51	8
52	1
53	11
54	6
55	7
56	7
57	9
58	10
59	1
60	9
61	9
62	6
63	9
64	6
65	11
66	7
67	13
68	1
69	12
70	1
71	14
72	1
73	16
74	1
75	17
76	1
77	19
78	1
79	14
80	7
81	9
82	7
83	11