A379944 - cp's OEIS frontend

A379944 Smallest number of leading digits of n! that form a prime (or 0 if none exist).

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

[0, 0, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 2, 0, 0, 2, 1, 1, 0, 7, 1, 1, 2, 1, 0, 5, 0, 0, 1, 8, 1, 0, 1, 6, 1, 3, 1, 2, 1, 1, 0, 1, 8, 38, 1, 2, 1, 1, 5, 34, 1, 5, 6, 0, 1, 0, 1, 6, 1, 2, 2, 1, 1, 2, 8, 9, 1, 1, 1, 2, 2, 0, 2, 5, 1, 1, 0, 4, 2, 2, 1, 1, 2, 1, 1, 1, 1]

cp's OEIS Frontend

A379944 Smallest number of leading digits of n! that form a prime (or 0 if none exist).

Table of values

List of values

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

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

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