A227683 - cp's OEIS frontend

A227683 Number of digits in n-th Mersenne number.

n	a(n)
1	1
2	1
3	2
4	3
5	4
6	4
7	6
8	6
9	7
10	9
11	10
12	12
13	13
14	13
15	15
16	16
17	18
18	19
19	21
20	22
21	22
22	24
23	25
24	27
25	30
26	31
27	32
28	33
29	33
30	35
31	39
32	40
33	42
34	42
35	45
36	46
37	48
38	50
39	51
40	53
41	54
42	55
43	58
44	59
45	60
46	60
47	64
48	68
49	69
50	69
51	71
52	72
53	73
54	76
55	78
56	80
57	81
58	82
59	84
60	85
61	86
62	89
63	93
64	94
65	95
66	96
67	100

[1, 1, 2, 3, 4, 4, 6, 6, 7, 9, 10, 12, 13, 13, 15, 16, 18, 19, 21, 22, 22, 24, 25, 27, 30, 31, 32, 33, 33, 35, 39, 40, 42, 42, 45, 46, 48, 50, 51, 53, 54, 55, 58, 59, 60, 60, 64, 68, 69, 69, 71, 72, 73, 76, 78, 80, 81, 82, 84, 85, 86, 89, 93, 94, 95, 96, 100]

cp's OEIS Frontend

A227683 Number of digits in n-th Mersenne number.

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	3
5	4
6	4
7	6
8	6
9	7
10	9
11	10
12	12
13	13
14	13
15	15
16	16
17	18
18	19
19	21
20	22
21	22
22	24
23	25
24	27
25	30
26	31
27	32
28	33
29	33
30	35
31	39
32	40
33	42
34	42
35	45
36	46
37	48
38	50
39	51
40	53
41	54
42	55
43	58
44	59
45	60
46	60
47	64
48	68
49	69
50	69
51	71
52	72
53	73
54	76
55	78
56	80
57	81
58	82
59	84
60	85
61	86
62	89
63	93
64	94
65	95
66	96
67	100

n	a(n)
1	1
2	1
3	2
4	3
5	4
6	4
7	6
8	6
9	7
10	9
11	10
12	12
13	13
14	13
15	15
16	16
17	18
18	19
19	21
20	22
21	22
22	24
23	25
24	27
25	30
26	31
27	32
28	33
29	33
30	35
31	39
32	40
33	42
34	42
35	45
36	46
37	48
38	50
39	51
40	53
41	54
42	55
43	58
44	59
45	60
46	60
47	64
48	68
49	69
50	69
51	71
52	72
53	73
54	76
55	78
56	80
57	81
58	82
59	84
60	85
61	86
62	89
63	93
64	94
65	95
66	96
67	100

n	a(n)
1	1
2	1
3	2
4	3
5	4
6	4
7	6
8	6
9	7
10	9
11	10
12	12
13	13
14	13
15	15
16	16
17	18
18	19
19	21
20	22
21	22
22	24
23	25
24	27
25	30
26	31
27	32
28	33
29	33
30	35
31	39
32	40
33	42
34	42
35	45
36	46
37	48
38	50
39	51
40	53
41	54
42	55
43	58
44	59
45	60
46	60
47	64
48	68
49	69
50	69
51	71
52	72
53	73
54	76
55	78
56	80
57	81
58	82
59	84
60	85
61	86
62	89
63	93
64	94
65	95
66	96
67	100