A078313 - cp's OEIS frontend

A078313 Number of distinct prime factors of n*rad(n)+1, where rad=A007947 (squarefree kernel).

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	1
7	2
8	1
9	2
10	1
11	2
12	1
13	3
14	1
15	2
16	2
17	3
18	1
19	2
20	2
21	3
22	2
23	3
24	2
25	3
26	1
27	2
28	2
29	2
30	2
31	3
32	2
33	3
34	2
35	2
36	2
37	3
38	2
39	2
40	1
41	2
42	2
43	3
44	3
45	2
46	2
47	4
48	1
49	2
50	2
51	2
52	3
53	3
54	2
55	3
56	2
57	3
58	2
59	2
60	1
61	2
62	2
63	2
64	2
65	2
66	1
67	3
68	2
69	2
70	2
71	2
72	1
73	4
74	1
75	2
76	2
77	3
78	2
79	2
80	2
81	2
82	2
83	4
84	1
85	2
86	2
87	3
88	2
89	3
90	2
91	3
92	3
93	3
94	1
95	2
96	1
97	3
98	1
99	3
100	3
101	2
102	2
103	3
104	2
105	3

[1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 3, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 2, 3, 1, 2, 2, 2, 2, 3, 2, 3, 2, 2, 2, 3, 2, 2, 1, 2, 2, 3, 3, 2, 2, 4, 1, 2, 2, 2, 3, 3, 2, 3, 2, 3, 2, 2, 1, 2, 2, 2, 2, 2, 1, 3, 2, 2, 2, 2, 1, 4, 1, 2, 2, 3, 2, 2, 2, 2, 2, 4, 1, 2, 2, 3, 2, 3, 2, 3, 3, 3, 1, 2, 1, 3, 1, 3, 3, 2, 2, 3, 2, 3]

cp's OEIS Frontend

A078313 Number of distinct prime factors of n*rad(n)+1, where rad=A007947 (squarefree kernel).

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	1
7	2
8	1
9	2
10	1
11	2
12	1
13	3
14	1
15	2
16	2
17	3
18	1
19	2
20	2
21	3
22	2
23	3
24	2
25	3
26	1
27	2
28	2
29	2
30	2
31	3
32	2
33	3
34	2
35	2
36	2
37	3
38	2
39	2
40	1
41	2
42	2
43	3
44	3
45	2
46	2
47	4
48	1
49	2
50	2
51	2
52	3
53	3
54	2
55	3
56	2
57	3
58	2
59	2
60	1
61	2
62	2
63	2
64	2
65	2
66	1
67	3
68	2
69	2
70	2
71	2
72	1
73	4
74	1
75	2
76	2
77	3
78	2
79	2
80	2
81	2
82	2
83	4
84	1
85	2
86	2
87	3
88	2
89	3
90	2
91	3
92	3
93	3
94	1
95	2
96	1
97	3
98	1
99	3
100	3
101	2
102	2
103	3
104	2
105	3

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	1
7	2
8	1
9	2
10	1
11	2
12	1
13	3
14	1
15	2
16	2
17	3
18	1
19	2
20	2
21	3
22	2
23	3
24	2
25	3
26	1
27	2
28	2
29	2
30	2
31	3
32	2
33	3
34	2
35	2
36	2
37	3
38	2
39	2
40	1
41	2
42	2
43	3
44	3
45	2
46	2
47	4
48	1
49	2
50	2
51	2
52	3
53	3
54	2
55	3
56	2
57	3
58	2
59	2
60	1
61	2
62	2
63	2
64	2
65	2
66	1
67	3
68	2
69	2
70	2
71	2
72	1
73	4
74	1
75	2
76	2
77	3
78	2
79	2
80	2
81	2
82	2
83	4
84	1
85	2
86	2
87	3
88	2
89	3
90	2
91	3
92	3
93	3
94	1
95	2
96	1
97	3
98	1
99	3
100	3
101	2
102	2
103	3
104	2
105	3

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	1
7	2
8	1
9	2
10	1
11	2
12	1
13	3
14	1
15	2
16	2
17	3
18	1
19	2
20	2
21	3
22	2
23	3
24	2
25	3
26	1
27	2
28	2
29	2
30	2
31	3
32	2
33	3
34	2
35	2
36	2
37	3
38	2
39	2
40	1
41	2
42	2
43	3
44	3
45	2
46	2
47	4
48	1
49	2
50	2
51	2
52	3
53	3
54	2
55	3
56	2
57	3
58	2
59	2
60	1
61	2
62	2
63	2
64	2
65	2
66	1
67	3
68	2
69	2
70	2
71	2
72	1
73	4
74	1
75	2
76	2
77	3
78	2
79	2
80	2
81	2
82	2
83	4
84	1
85	2
86	2
87	3
88	2
89	3
90	2
91	3
92	3
93	3
94	1
95	2
96	1
97	3
98	1
99	3
100	3
101	2
102	2
103	3
104	2
105	3