A372689 - cp's OEIS frontend

A372689 Positive integers whose binary indices (positions of ones in reversed binary expansion) sum to a prime number.

n	a(n)
1	2
2	3
3	4
4	6
5	9
6	11
7	12
8	16
9	18
10	23
11	26
12	29
13	33
14	38
15	41
16	43
17	44
18	48
19	50
20	55
21	58
22	61
23	64
24	69
25	71
26	72
27	74
28	79
29	81
30	86
31	89
32	91
33	92
34	96
35	101
36	103
37	104
38	106
39	111
40	113
41	118
42	121
43	131
44	132
45	134
46	137
47	142
48	144
49	149
50	151
51	152
52	154
53	159
54	163
55	164
56	166
57	169
58	174
59	176
60	181

[2, 3, 4, 6, 9, 11, 12, 16, 18, 23, 26, 29, 33, 38, 41, 43, 44, 48, 50, 55, 58, 61, 64, 69, 71, 72, 74, 79, 81, 86, 89, 91, 92, 96, 101, 103, 104, 106, 111, 113, 118, 121, 131, 132, 134, 137, 142, 144, 149, 151, 152, 154, 159, 163, 164, 166, 169, 174, 176, 181]

cp's OEIS Frontend

A372689 Positive integers whose binary indices (positions of ones in reversed binary expansion) sum to a prime number.

Table of values

List of values

n	a(n)
1	2
2	3
3	4
4	6
5	9
6	11
7	12
8	16
9	18
10	23
11	26
12	29
13	33
14	38
15	41
16	43
17	44
18	48
19	50
20	55
21	58
22	61
23	64
24	69
25	71
26	72
27	74
28	79
29	81
30	86
31	89
32	91
33	92
34	96
35	101
36	103
37	104
38	106
39	111
40	113
41	118
42	121
43	131
44	132
45	134
46	137
47	142
48	144
49	149
50	151
51	152
52	154
53	159
54	163
55	164
56	166
57	169
58	174
59	176
60	181

n	a(n)
1	2
2	3
3	4
4	6
5	9
6	11
7	12
8	16
9	18
10	23
11	26
12	29
13	33
14	38
15	41
16	43
17	44
18	48
19	50
20	55
21	58
22	61
23	64
24	69
25	71
26	72
27	74
28	79
29	81
30	86
31	89
32	91
33	92
34	96
35	101
36	103
37	104
38	106
39	111
40	113
41	118
42	121
43	131
44	132
45	134
46	137
47	142
48	144
49	149
50	151
51	152
52	154
53	159
54	163
55	164
56	166
57	169
58	174
59	176
60	181

n	a(n)
1	2
2	3
3	4
4	6
5	9
6	11
7	12
8	16
9	18
10	23
11	26
12	29
13	33
14	38
15	41
16	43
17	44
18	48
19	50
20	55
21	58
22	61
23	64
24	69
25	71
26	72
27	74
28	79
29	81
30	86
31	89
32	91
33	92
34	96
35	101
36	103
37	104
38	106
39	111
40	113
41	118
42	121
43	131
44	132
45	134
46	137
47	142
48	144
49	149
50	151
51	152
52	154
53	159
54	163
55	164
56	166
57	169
58	174
59	176
60	181