A363743 - cp's OEIS frontend

A363743 a(n) = floor(sqrt(log_10(n!))).

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	1
6	1
7	1
8	2
9	2
10	2
11	2
12	2
13	3
14	3
15	3
16	3
17	3
18	3
19	4
20	4
21	4
22	4
23	4
24	4
25	5
26	5
27	5
28	5
29	5
30	5
31	5
32	5
33	6
34	6
35	6
36	6
37	6
38	6
39	6
40	6
41	7
42	7
43	7
44	7
45	7
46	7
47	7
48	7
49	7
50	8
51	8
52	8
53	8
54	8
55	8
56	8
57	8
58	8
59	8
60	9
61	9
62	9
63	9
64	9
65	9
66	9
67	9
68	9
69	9
70	10
71	10
72	10
73	10
74	10
75	10
76	10
77	10
78	10
79	10
80	10
81	10
82	11
83	11
84	11
85	11
86	11
87	11
88	11
89	11
90	11
91	11
92	11

[0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11]

cp's OEIS Frontend

A363743 a(n) = floor(sqrt(log_10(n!))).

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	1
6	1
7	1
8	2
9	2
10	2
11	2
12	2
13	3
14	3
15	3
16	3
17	3
18	3
19	4
20	4
21	4
22	4
23	4
24	4
25	5
26	5
27	5
28	5
29	5
30	5
31	5
32	5
33	6
34	6
35	6
36	6
37	6
38	6
39	6
40	6
41	7
42	7
43	7
44	7
45	7
46	7
47	7
48	7
49	7
50	8
51	8
52	8
53	8
54	8
55	8
56	8
57	8
58	8
59	8
60	9
61	9
62	9
63	9
64	9
65	9
66	9
67	9
68	9
69	9
70	10
71	10
72	10
73	10
74	10
75	10
76	10
77	10
78	10
79	10
80	10
81	10
82	11
83	11
84	11
85	11
86	11
87	11
88	11
89	11
90	11
91	11
92	11

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	1
6	1
7	1
8	2
9	2
10	2
11	2
12	2
13	3
14	3
15	3
16	3
17	3
18	3
19	4
20	4
21	4
22	4
23	4
24	4
25	5
26	5
27	5
28	5
29	5
30	5
31	5
32	5
33	6
34	6
35	6
36	6
37	6
38	6
39	6
40	6
41	7
42	7
43	7
44	7
45	7
46	7
47	7
48	7
49	7
50	8
51	8
52	8
53	8
54	8
55	8
56	8
57	8
58	8
59	8
60	9
61	9
62	9
63	9
64	9
65	9
66	9
67	9
68	9
69	9
70	10
71	10
72	10
73	10
74	10
75	10
76	10
77	10
78	10
79	10
80	10
81	10
82	11
83	11
84	11
85	11
86	11
87	11
88	11
89	11
90	11
91	11
92	11

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	1
6	1
7	1
8	2
9	2
10	2
11	2
12	2
13	3
14	3
15	3
16	3
17	3
18	3
19	4
20	4
21	4
22	4
23	4
24	4
25	5
26	5
27	5
28	5
29	5
30	5
31	5
32	5
33	6
34	6
35	6
36	6
37	6
38	6
39	6
40	6
41	7
42	7
43	7
44	7
45	7
46	7
47	7
48	7
49	7
50	8
51	8
52	8
53	8
54	8
55	8
56	8
57	8
58	8
59	8
60	9
61	9
62	9
63	9
64	9
65	9
66	9
67	9
68	9
69	9
70	10
71	10
72	10
73	10
74	10
75	10
76	10
77	10
78	10
79	10
80	10
81	10
82	11
83	11
84	11
85	11
86	11
87	11
88	11
89	11
90	11
91	11
92	11