A168354 - cp's OEIS frontend

A168354 Squarefree semiprimes whose binary expansion is palindromic.

n	a(n)
1	15
2	21
3	33
4	51
5	65
6	85
7	93
8	119
9	129
10	219
11	341
12	365
13	381
14	403
15	427
16	471
17	511
18	633
19	717
20	771
21	843
22	951
23	1057
24	1137
25	1241
26	1273
27	1285
28	1317
29	1397
30	1501
31	1651
32	1707
33	1799
34	1967
35	2047
36	2049
37	2661
38	2973
39	3579
40	3687
41	3831
42	4097
43	4321
44	4369
45	4529
46	4593
47	4681

[15, 21, 33, 51, 65, 85, 93, 119, 129, 219, 341, 365, 381, 403, 427, 471, 511, 633, 717, 771, 843, 951, 1057, 1137, 1241, 1273, 1285, 1317, 1397, 1501, 1651, 1707, 1799, 1967, 2047, 2049, 2661, 2973, 3579, 3687, 3831, 4097, 4321, 4369, 4529, 4593, 4681]

cp's OEIS Frontend

A168354 Squarefree semiprimes whose binary expansion is palindromic.

Table of values

List of values