A355148 - cp's OEIS frontend

A355148 Numbers that are the concatenation of two palindromes and that have exactly two palindromic factors, all with the same number of decimal digits.

n	a(n)
1	12
2	14
3	15
4	16
5	18
6	21
7	24
8	25
9	27
10	28
11	32
12	35
13	36
14	42
15	45
16	48
17	49
18	54
19	56
20	63
21	64
22	72
23	81
24	3388
25	7744
26	101787
27	101808
28	111888
29	151848
30	212565
31	212898
32	232656
33	313464
34	313575
35	353868
36	383595
37	383838
38	414585
39	434676
40	454545
41	505808
42	515595
43	525252
44	555888

[12, 14, 15, 16, 18, 21, 24, 25, 27, 28, 32, 35, 36, 42, 45, 48, 49, 54, 56, 63, 64, 72, 81, 3388, 7744, 101787, 101808, 111888, 151848, 212565, 212898, 232656, 313464, 313575, 353868, 383595, 383838, 414585, 434676, 454545, 505808, 515595, 525252, 555888]

cp's OEIS Frontend

A355148 Numbers that are the concatenation of two palindromes and that have exactly two palindromic factors, all with the same number of decimal digits.

Table of values

List of values