A187277 - cp's OEIS frontend

A187277 Let S denote the palindromes in the language {0,1,2,...,n-1}*; a(n) = number of words of length 4 in the language SS.

n	a(n)
1	1
2	16
3	57
4	136
5	265
6	456
7	721
8	1072
9	1521
10	2080
11	2761
12	3576
13	4537
14	5656
15	6945
16	8416
17	10081
18	11952
19	14041
20	16360
21	18921
22	21736
23	24817
24	28176
25	31825
26	35776
27	40041
28	44632
29	49561
30	54840
31	60481
32	66496
33	72897
34	79696
35	86905
36	94536
37	102601
38	111112
39	120081
40	129520
41	139441
42	149856
43	160777
44	172216
45	184185

[1, 16, 57, 136, 265, 456, 721, 1072, 1521, 2080, 2761, 3576, 4537, 5656, 6945, 8416, 10081, 11952, 14041, 16360, 18921, 21736, 24817, 28176, 31825, 35776, 40041, 44632, 49561, 54840, 60481, 66496, 72897, 79696, 86905, 94536, 102601, 111112, 120081, 129520, 139441, 149856, 160777, 172216, 184185]

cp's OEIS Frontend

A187277 Let S denote the palindromes in the language {0,1,2,...,n-1}*; a(n) = number of words of length 4 in the language SS.

Table of values

List of values