A066856 - cp's OEIS frontend

A066856 a(n) = omega(n!+1), where omega is the number of distinct primes dividing n, A001221.

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	2
7	1
8	2
9	3
10	2
11	1
12	2
13	2
14	2
15	3
16	5
17	3
18	6
19	2
20	2
21	3
22	3
23	3
24	2
25	2
26	2
27	1
28	2
29	3
30	5
31	4
32	4
33	5
34	2
35	5
36	6
37	1
38	2
39	4
40	7
41	1
42	3
43	4
44	3
45	3
46	3
47	4
48	2
49	5
50	5
51	6
52	4
53	4
54	2
55	2
56	4
57	3
58	4
59	2
60	4
61	4
62	3
63	5
64	3
65	4
66	5
67	4
68	5
69	6
70	5
71	2
72	7
73	1
74	4
75	2
76	3
77	1
78	6
79	3
80	4
81	7
82	3
83	3
84	3
85	5
86	5
87	4
88	3
89	8
90	3
91	6
92	2
93	4
94	3
95	4
96	5
97	6
98	6
99	5
100	5
101	4
102	5

[1, 1, 1, 1, 1, 2, 1, 2, 3, 2, 1, 2, 2, 2, 3, 5, 3, 6, 2, 2, 3, 3, 3, 2, 2, 2, 1, 2, 3, 5, 4, 4, 5, 2, 5, 6, 1, 2, 4, 7, 1, 3, 4, 3, 3, 3, 4, 2, 5, 5, 6, 4, 4, 2, 2, 4, 3, 4, 2, 4, 4, 3, 5, 3, 4, 5, 4, 5, 6, 5, 2, 7, 1, 4, 2, 3, 1, 6, 3, 4, 7, 3, 3, 3, 5, 5, 4, 3, 8, 3, 6, 2, 4, 3, 4, 5, 6, 6, 5, 5, 4, 5]

cp's OEIS Frontend

A066856 a(n) = omega(n!+1), where omega is the number of distinct primes dividing n, A001221.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	2
7	1
8	2
9	3
10	2
11	1
12	2
13	2
14	2
15	3
16	5
17	3
18	6
19	2
20	2
21	3
22	3
23	3
24	2
25	2
26	2
27	1
28	2
29	3
30	5
31	4
32	4
33	5
34	2
35	5
36	6
37	1
38	2
39	4
40	7
41	1
42	3
43	4
44	3
45	3
46	3
47	4
48	2
49	5
50	5
51	6
52	4
53	4
54	2
55	2
56	4
57	3
58	4
59	2
60	4
61	4
62	3
63	5
64	3
65	4
66	5
67	4
68	5
69	6
70	5
71	2
72	7
73	1
74	4
75	2
76	3
77	1
78	6
79	3
80	4
81	7
82	3
83	3
84	3
85	5
86	5
87	4
88	3
89	8
90	3
91	6
92	2
93	4
94	3
95	4
96	5
97	6
98	6
99	5
100	5
101	4
102	5

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	2
7	1
8	2
9	3
10	2
11	1
12	2
13	2
14	2
15	3
16	5
17	3
18	6
19	2
20	2
21	3
22	3
23	3
24	2
25	2
26	2
27	1
28	2
29	3
30	5
31	4
32	4
33	5
34	2
35	5
36	6
37	1
38	2
39	4
40	7
41	1
42	3
43	4
44	3
45	3
46	3
47	4
48	2
49	5
50	5
51	6
52	4
53	4
54	2
55	2
56	4
57	3
58	4
59	2
60	4
61	4
62	3
63	5
64	3
65	4
66	5
67	4
68	5
69	6
70	5
71	2
72	7
73	1
74	4
75	2
76	3
77	1
78	6
79	3
80	4
81	7
82	3
83	3
84	3
85	5
86	5
87	4
88	3
89	8
90	3
91	6
92	2
93	4
94	3
95	4
96	5
97	6
98	6
99	5
100	5
101	4
102	5

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	2
7	1
8	2
9	3
10	2
11	1
12	2
13	2
14	2
15	3
16	5
17	3
18	6
19	2
20	2
21	3
22	3
23	3
24	2
25	2
26	2
27	1
28	2
29	3
30	5
31	4
32	4
33	5
34	2
35	5
36	6
37	1
38	2
39	4
40	7
41	1
42	3
43	4
44	3
45	3
46	3
47	4
48	2
49	5
50	5
51	6
52	4
53	4
54	2
55	2
56	4
57	3
58	4
59	2
60	4
61	4
62	3
63	5
64	3
65	4
66	5
67	4
68	5
69	6
70	5
71	2
72	7
73	1
74	4
75	2
76	3
77	1
78	6
79	3
80	4
81	7
82	3
83	3
84	3
85	5
86	5
87	4
88	3
89	8
90	3
91	6
92	2
93	4
94	3
95	4
96	5
97	6
98	6
99	5
100	5
101	4
102	5