A163170 - cp's OEIS frontend

A163170 Odd composite integers that are palindromes when written in binary.

n	a(n)
1	9
2	15
3	21
4	27
5	33
6	45
7	51
8	63
9	65
10	85
11	93
12	99
13	119
14	129
15	153
16	165
17	189
18	195
19	219
20	231
21	255
22	273
23	297
24	325
25	341
26	365
27	381
28	387
29	403
30	427
31	455
32	471
33	495
34	511
35	513
36	561
37	585
38	633
39	645
40	693
41	717
42	765
43	771
44	819
45	843
46	891
47	903
48	951
49	975
50	1023
51	1025
52	1057
53	1105
54	1137

[9, 15, 21, 27, 33, 45, 51, 63, 65, 85, 93, 99, 119, 129, 153, 165, 189, 195, 219, 231, 255, 273, 297, 325, 341, 365, 381, 387, 403, 427, 455, 471, 495, 511, 513, 561, 585, 633, 645, 693, 717, 765, 771, 819, 843, 891, 903, 951, 975, 1023, 1025, 1057, 1105, 1137]

cp's OEIS Frontend

A163170 Odd composite integers that are palindromes when written in binary.

Table of values

List of values