A331893 - cp's OEIS frontend

A331893 Positive numbers k such that both k and -k are a palindromes in negabinary representation.

n	a(n)
1	1
2	5
3	7
4	17
5	21
6	31
7	57
8	65
9	85
10	127
11	155
12	217
13	257
14	273
15	325
16	341
17	455
18	511
19	635
20	857
21	889
22	993
23	1025
24	1105
25	1253
26	1285
27	1365
28	1799
29	2047
30	2159
31	2555
32	2667
33	3417
34	3577
35	3641
36	3937
37	4097
38	4161
39	4369
40	4433
41	4965
42	5125
43	5189
44	5397
45	5461
46	6951
47	7175
48	7967
49	8191

[1, 5, 7, 17, 21, 31, 57, 65, 85, 127, 155, 217, 257, 273, 325, 341, 455, 511, 635, 857, 889, 993, 1025, 1105, 1253, 1285, 1365, 1799, 2047, 2159, 2555, 2667, 3417, 3577, 3641, 3937, 4097, 4161, 4369, 4433, 4965, 5125, 5189, 5397, 5461, 6951, 7175, 7967, 8191]

cp's OEIS Frontend

A331893 Positive numbers k such that both k and -k are a palindromes in negabinary representation.

Table of values

List of values