A034886 - cp's OEIS frontend

A034886 Number of digits in n!.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	3
6	3
7	4
8	5
9	6
10	7
11	8
12	9
13	10
14	11
15	13
16	14
17	15
18	16
19	18
20	19
21	20
22	22
23	23
24	24
25	26
26	27
27	29
28	30
29	31
30	33
31	34
32	36
33	37
34	39
35	41
36	42
37	44
38	45
39	47
40	48
41	50
42	52
43	53
44	55
45	57
46	58
47	60
48	62
49	63
50	65
51	67
52	68
53	70
54	72
55	74
56	75
57	77
58	79
59	81
60	82
61	84
62	86
63	88
64	90
65	91
66	93
67	95
68	97
69	99
70	101
71	102

[1, 1, 1, 1, 2, 3, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 18, 19, 20, 22, 23, 24, 26, 27, 29, 30, 31, 33, 34, 36, 37, 39, 41, 42, 44, 45, 47, 48, 50, 52, 53, 55, 57, 58, 60, 62, 63, 65, 67, 68, 70, 72, 74, 75, 77, 79, 81, 82, 84, 86, 88, 90, 91, 93, 95, 97, 99, 101, 102]

cp's OEIS Frontend

A034886 Number of digits in n!.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	3
6	3
7	4
8	5
9	6
10	7
11	8
12	9
13	10
14	11
15	13
16	14
17	15
18	16
19	18
20	19
21	20
22	22
23	23
24	24
25	26
26	27
27	29
28	30
29	31
30	33
31	34
32	36
33	37
34	39
35	41
36	42
37	44
38	45
39	47
40	48
41	50
42	52
43	53
44	55
45	57
46	58
47	60
48	62
49	63
50	65
51	67
52	68
53	70
54	72
55	74
56	75
57	77
58	79
59	81
60	82
61	84
62	86
63	88
64	90
65	91
66	93
67	95
68	97
69	99
70	101
71	102

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	3
6	3
7	4
8	5
9	6
10	7
11	8
12	9
13	10
14	11
15	13
16	14
17	15
18	16
19	18
20	19
21	20
22	22
23	23
24	24
25	26
26	27
27	29
28	30
29	31
30	33
31	34
32	36
33	37
34	39
35	41
36	42
37	44
38	45
39	47
40	48
41	50
42	52
43	53
44	55
45	57
46	58
47	60
48	62
49	63
50	65
51	67
52	68
53	70
54	72
55	74
56	75
57	77
58	79
59	81
60	82
61	84
62	86
63	88
64	90
65	91
66	93
67	95
68	97
69	99
70	101
71	102

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	3
6	3
7	4
8	5
9	6
10	7
11	8
12	9
13	10
14	11
15	13
16	14
17	15
18	16
19	18
20	19
21	20
22	22
23	23
24	24
25	26
26	27
27	29
28	30
29	31
30	33
31	34
32	36
33	37
34	39
35	41
36	42
37	44
38	45
39	47
40	48
41	50
42	52
43	53
44	55
45	57
46	58
47	60
48	62
49	63
50	65
51	67
52	68
53	70
54	72
55	74
56	75
57	77
58	79
59	81
60	82
61	84
62	86
63	88
64	90
65	91
66	93
67	95
68	97
69	99
70	101
71	102