A292348 - cp's OEIS frontend

A292348 "Pri-most" numbers: the majority of bits in the binary representation of these numbers satisfy the following: complementing this bit produces a prime number.

n	a(n)
1	6
2	7
3	15
4	19
5	21
6	23
7	27
8	43
9	45
10	63
11	71
12	75
13	77
14	81
15	99
16	101
17	105
18	111
19	135
20	147
21	159
22	165
23	175
24	183
25	189
26	195
27	225
28	231
29	235
30	237
31	243
32	255
33	261
34	273
35	285
36	309
37	315
38	335
39	345
40	357
41	363
42	375
43	381
44	423
45	435
46	483
47	495
48	507
49	553
50	555
51	573
52	585
53	645
54	663
55	669
56	675

[6, 7, 15, 19, 21, 23, 27, 43, 45, 63, 71, 75, 77, 81, 99, 101, 105, 111, 135, 147, 159, 165, 175, 183, 189, 195, 225, 231, 235, 237, 243, 255, 261, 273, 285, 309, 315, 335, 345, 357, 363, 375, 381, 423, 435, 483, 495, 507, 553, 555, 573, 585, 645, 663, 669, 675]

cp's OEIS Frontend

A292348 "Pri-most" numbers: the majority of bits in the binary representation of these numbers satisfy the following: complementing this bit produces a prime number.

Table of values

List of values

n	a(n)
1	6
2	7
3	15
4	19
5	21
6	23
7	27
8	43
9	45
10	63
11	71
12	75
13	77
14	81
15	99
16	101
17	105
18	111
19	135
20	147
21	159
22	165
23	175
24	183
25	189
26	195
27	225
28	231
29	235
30	237
31	243
32	255
33	261
34	273
35	285
36	309
37	315
38	335
39	345
40	357
41	363
42	375
43	381
44	423
45	435
46	483
47	495
48	507
49	553
50	555
51	573
52	585
53	645
54	663
55	669
56	675

n	a(n)
1	6
2	7
3	15
4	19
5	21
6	23
7	27
8	43
9	45
10	63
11	71
12	75
13	77
14	81
15	99
16	101
17	105
18	111
19	135
20	147
21	159
22	165
23	175
24	183
25	189
26	195
27	225
28	231
29	235
30	237
31	243
32	255
33	261
34	273
35	285
36	309
37	315
38	335
39	345
40	357
41	363
42	375
43	381
44	423
45	435
46	483
47	495
48	507
49	553
50	555
51	573
52	585
53	645
54	663
55	669
56	675

n	a(n)
1	6
2	7
3	15
4	19
5	21
6	23
7	27
8	43
9	45
10	63
11	71
12	75
13	77
14	81
15	99
16	101
17	105
18	111
19	135
20	147
21	159
22	165
23	175
24	183
25	189
26	195
27	225
28	231
29	235
30	237
31	243
32	255
33	261
34	273
35	285
36	309
37	315
38	335
39	345
40	357
41	363
42	375
43	381
44	423
45	435
46	483
47	495
48	507
49	553
50	555
51	573
52	585
53	645
54	663
55	669
56	675