A260184 - cp's OEIS frontend

A260184 Numbers n written in base 10 that are palindromic in exactly three bases b, 2 <= b <= 10 and not simultaneously bases 2, 4 and 8.

n	a(n)
1	9
2	10
3	21
4	40
5	55
6	80
7	85
8	100
9	130
10	154
11	164
12	178
13	191
14	203
15	235
16	242
17	255
18	257
19	273
20	282
21	292
22	300
23	328
24	400
25	455
26	585
27	656
28	819
29	910
30	2709
31	6643
32	8200
33	14762
34	32152
35	53235
36	74647
37	428585
38	532900
39	1181729
40	1405397
41	4210945
42	5259525
43	27711772
44	719848917
45	43253138565

[9, 10, 21, 40, 55, 80, 85, 100, 130, 154, 164, 178, 191, 203, 235, 242, 255, 257, 273, 282, 292, 300, 328, 400, 455, 585, 656, 819, 910, 2709, 6643, 8200, 14762, 32152, 53235, 74647, 428585, 532900, 1181729, 1405397, 4210945, 5259525, 27711772, 719848917, 43253138565]

cp's OEIS Frontend

A260184 Numbers n written in base 10 that are palindromic in exactly three bases b, 2 <= b <= 10 and not simultaneously bases 2, 4 and 8.

Table of values

List of values