A338375 - cp's OEIS frontend

A338375 Number of digits in (2n)! / (2^n * n!).

n	a(n)
1	1
2	1
3	2
4	3
5	3
6	5
7	6
8	7
9	8
10	9
11	11
12	12
13	13
14	15
15	16
16	18
17	19
18	21
19	22
20	24
21	26
22	27
23	29
24	31
25	32
26	34
27	36
28	37
29	39
30	41
31	43
32	45
33	46
34	48
35	50
36	52
37	54
38	56
39	58
40	59
41	61
42	63
43	65
44	67
45	69
46	71
47	73
48	75
49	77
50	79
51	81
52	83
53	85
54	87
55	89
56	91
57	93
58	95
59	97
60	99
61	101
62	104
63	106
64	108
65	110

[1, 1, 2, 3, 3, 5, 6, 7, 8, 9, 11, 12, 13, 15, 16, 18, 19, 21, 22, 24, 26, 27, 29, 31, 32, 34, 36, 37, 39, 41, 43, 45, 46, 48, 50, 52, 54, 56, 58, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101, 104, 106, 108, 110]

cp's OEIS Frontend

A338375 Number of digits in (2n)! / (2^n * n!).

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	3
5	3
6	5
7	6
8	7
9	8
10	9
11	11
12	12
13	13
14	15
15	16
16	18
17	19
18	21
19	22
20	24
21	26
22	27
23	29
24	31
25	32
26	34
27	36
28	37
29	39
30	41
31	43
32	45
33	46
34	48
35	50
36	52
37	54
38	56
39	58
40	59
41	61
42	63
43	65
44	67
45	69
46	71
47	73
48	75
49	77
50	79
51	81
52	83
53	85
54	87
55	89
56	91
57	93
58	95
59	97
60	99
61	101
62	104
63	106
64	108
65	110

n	a(n)
1	1
2	1
3	2
4	3
5	3
6	5
7	6
8	7
9	8
10	9
11	11
12	12
13	13
14	15
15	16
16	18
17	19
18	21
19	22
20	24
21	26
22	27
23	29
24	31
25	32
26	34
27	36
28	37
29	39
30	41
31	43
32	45
33	46
34	48
35	50
36	52
37	54
38	56
39	58
40	59
41	61
42	63
43	65
44	67
45	69
46	71
47	73
48	75
49	77
50	79
51	81
52	83
53	85
54	87
55	89
56	91
57	93
58	95
59	97
60	99
61	101
62	104
63	106
64	108
65	110

n	a(n)
1	1
2	1
3	2
4	3
5	3
6	5
7	6
8	7
9	8
10	9
11	11
12	12
13	13
14	15
15	16
16	18
17	19
18	21
19	22
20	24
21	26
22	27
23	29
24	31
25	32
26	34
27	36
28	37
29	39
30	41
31	43
32	45
33	46
34	48
35	50
36	52
37	54
38	56
39	58
40	59
41	61
42	63
43	65
44	67
45	69
46	71
47	73
48	75
49	77
50	79
51	81
52	83
53	85
54	87
55	89
56	91
57	93
58	95
59	97
60	99
61	101
62	104
63	106
64	108
65	110