A337812 - cp's OEIS frontend

A337812 Numbers k such that the number of prime factors, counted with multiplicity, of 2^k - 1 is greater than the corresponding count for 2^k + 1.

n	a(n)
1	4
2	6
3	8
4	12
5	16
6	18
7	20
8	22
9	24
10	28
11	30
12	32
13	36
14	40
15	42
16	43
17	44
18	48
19	52
20	54
21	56
22	58
23	60
24	64
25	66
26	68
27	70
28	72
29	76
30	79
31	80
32	84
33	87
34	88
35	90
36	92
37	94
38	96
39	100
40	102
41	104
42	106
43	108
44	110
45	112
46	114
47	116
48	117
49	119
50	120
51	124
52	126
53	128
54	132
55	136
56	138
57	140
58	144
59	146
60	148
61	151

[4, 6, 8, 12, 16, 18, 20, 22, 24, 28, 30, 32, 36, 40, 42, 43, 44, 48, 52, 54, 56, 58, 60, 64, 66, 68, 70, 72, 76, 79, 80, 84, 87, 88, 90, 92, 94, 96, 100, 102, 104, 106, 108, 110, 112, 114, 116, 117, 119, 120, 124, 126, 128, 132, 136, 138, 140, 144, 146, 148, 151]

cp's OEIS Frontend

A337812 Numbers k such that the number of prime factors, counted with multiplicity, of 2^k - 1 is greater than the corresponding count for 2^k + 1.

Table of values

List of values

n	a(n)
1	4
2	6
3	8
4	12
5	16
6	18
7	20
8	22
9	24
10	28
11	30
12	32
13	36
14	40
15	42
16	43
17	44
18	48
19	52
20	54
21	56
22	58
23	60
24	64
25	66
26	68
27	70
28	72
29	76
30	79
31	80
32	84
33	87
34	88
35	90
36	92
37	94
38	96
39	100
40	102
41	104
42	106
43	108
44	110
45	112
46	114
47	116
48	117
49	119
50	120
51	124
52	126
53	128
54	132
55	136
56	138
57	140
58	144
59	146
60	148
61	151

n	a(n)
1	4
2	6
3	8
4	12
5	16
6	18
7	20
8	22
9	24
10	28
11	30
12	32
13	36
14	40
15	42
16	43
17	44
18	48
19	52
20	54
21	56
22	58
23	60
24	64
25	66
26	68
27	70
28	72
29	76
30	79
31	80
32	84
33	87
34	88
35	90
36	92
37	94
38	96
39	100
40	102
41	104
42	106
43	108
44	110
45	112
46	114
47	116
48	117
49	119
50	120
51	124
52	126
53	128
54	132
55	136
56	138
57	140
58	144
59	146
60	148
61	151

n	a(n)
1	4
2	6
3	8
4	12
5	16
6	18
7	20
8	22
9	24
10	28
11	30
12	32
13	36
14	40
15	42
16	43
17	44
18	48
19	52
20	54
21	56
22	58
23	60
24	64
25	66
26	68
27	70
28	72
29	76
30	79
31	80
32	84
33	87
34	88
35	90
36	92
37	94
38	96
39	100
40	102
41	104
42	106
43	108
44	110
45	112
46	114
47	116
48	117
49	119
50	120
51	124
52	126
53	128
54	132
55	136
56	138
57	140
58	144
59	146
60	148
61	151