A277327 - cp's OEIS frontend

A277327 Number of distinct primes dividing gcd(A260443(n), A260443(n+1)): a(n) = A001221(A277198(n)).

n	a(n)
0	0
1	0
2	1
3	0
4	0
5	1
6	2
7	0
8	0
9	2
10	2
11	1
12	1
13	2
14	3
15	0
16	0
17	3
18	2
19	1
20	1
21	2
22	3
23	1
24	1
25	3
26	3
27	2
28	2
29	3
30	4
31	0
32	0
33	4
34	3
35	2
36	2
37	3
38	3
39	1
40	1
41	3
42	3
43	2
44	2
45	3
46	4
47	1
48	1
49	4
50	3
51	2
52	2
53	3
54	4
55	2
56	2
57	4
58	4
59	3
60	3
61	4
62	5
63	0
64	0
65	5
66	4
67	3
68	3
69	4
70	4
71	2
72	2
73	4
74	3
75	2
76	2
77	3
78	4
79	1
80	1
81	4
82	3
83	2
84	2
85	3
86	4
87	2
88	2
89	4
90	4
91	3
92	3
93	4
94	5
95	1
96	1
97	5
98	4
99	3
100	3
101	4
102	4
103	2
104	2
105	4
106	4
107	3
108	3
109	4
110	5
111	2
112	2
113	5
114	4
115	3
116	3
117	4
118	5
119	3
120	3

[0, 0, 1, 0, 0, 1, 2, 0, 0, 2, 2, 1, 1, 2, 3, 0, 0, 3, 2, 1, 1, 2, 3, 1, 1, 3, 3, 2, 2, 3, 4, 0, 0, 4, 3, 2, 2, 3, 3, 1, 1, 3, 3, 2, 2, 3, 4, 1, 1, 4, 3, 2, 2, 3, 4, 2, 2, 4, 4, 3, 3, 4, 5, 0, 0, 5, 4, 3, 3, 4, 4, 2, 2, 4, 3, 2, 2, 3, 4, 1, 1, 4, 3, 2, 2, 3, 4, 2, 2, 4, 4, 3, 3, 4, 5, 1, 1, 5, 4, 3, 3, 4, 4, 2, 2, 4, 4, 3, 3, 4, 5, 2, 2, 5, 4, 3, 3, 4, 5, 3, 3]

cp's OEIS Frontend

A277327 Number of distinct primes dividing gcd(A260443(n), A260443(n+1)): a(n) = A001221(A277198(n)).

Table of values

List of values

n	a(n)
0	0
1	0
2	1
3	0
4	0
5	1
6	2
7	0
8	0
9	2
10	2
11	1
12	1
13	2
14	3
15	0
16	0
17	3
18	2
19	1
20	1
21	2
22	3
23	1
24	1
25	3
26	3
27	2
28	2
29	3
30	4
31	0
32	0
33	4
34	3
35	2
36	2
37	3
38	3
39	1
40	1
41	3
42	3
43	2
44	2
45	3
46	4
47	1
48	1
49	4
50	3
51	2
52	2
53	3
54	4
55	2
56	2
57	4
58	4
59	3
60	3
61	4
62	5
63	0
64	0
65	5
66	4
67	3
68	3
69	4
70	4
71	2
72	2
73	4
74	3
75	2
76	2
77	3
78	4
79	1
80	1
81	4
82	3
83	2
84	2
85	3
86	4
87	2
88	2
89	4
90	4
91	3
92	3
93	4
94	5
95	1
96	1
97	5
98	4
99	3
100	3
101	4
102	4
103	2
104	2
105	4
106	4
107	3
108	3
109	4
110	5
111	2
112	2
113	5
114	4
115	3
116	3
117	4
118	5
119	3
120	3

n	a(n)
0	0
1	0
2	1
3	0
4	0
5	1
6	2
7	0
8	0
9	2
10	2
11	1
12	1
13	2
14	3
15	0
16	0
17	3
18	2
19	1
20	1
21	2
22	3
23	1
24	1
25	3
26	3
27	2
28	2
29	3
30	4
31	0
32	0
33	4
34	3
35	2
36	2
37	3
38	3
39	1
40	1
41	3
42	3
43	2
44	2
45	3
46	4
47	1
48	1
49	4
50	3
51	2
52	2
53	3
54	4
55	2
56	2
57	4
58	4
59	3
60	3
61	4
62	5
63	0
64	0
65	5
66	4
67	3
68	3
69	4
70	4
71	2
72	2
73	4
74	3
75	2
76	2
77	3
78	4
79	1
80	1
81	4
82	3
83	2
84	2
85	3
86	4
87	2
88	2
89	4
90	4
91	3
92	3
93	4
94	5
95	1
96	1
97	5
98	4
99	3
100	3
101	4
102	4
103	2
104	2
105	4
106	4
107	3
108	3
109	4
110	5
111	2
112	2
113	5
114	4
115	3
116	3
117	4
118	5
119	3
120	3

n	a(n)
0	0
1	0
2	1
3	0
4	0
5	1
6	2
7	0
8	0
9	2
10	2
11	1
12	1
13	2
14	3
15	0
16	0
17	3
18	2
19	1
20	1
21	2
22	3
23	1
24	1
25	3
26	3
27	2
28	2
29	3
30	4
31	0
32	0
33	4
34	3
35	2
36	2
37	3
38	3
39	1
40	1
41	3
42	3
43	2
44	2
45	3
46	4
47	1
48	1
49	4
50	3
51	2
52	2
53	3
54	4
55	2
56	2
57	4
58	4
59	3
60	3
61	4
62	5
63	0
64	0
65	5
66	4
67	3
68	3
69	4
70	4
71	2
72	2
73	4
74	3
75	2
76	2
77	3
78	4
79	1
80	1
81	4
82	3
83	2
84	2
85	3
86	4
87	2
88	2
89	4
90	4
91	3
92	3
93	4
94	5
95	1
96	1
97	5
98	4
99	3
100	3
101	4
102	4
103	2
104	2
105	4
106	4
107	3
108	3
109	4
110	5
111	2
112	2
113	5
114	4
115	3
116	3
117	4
118	5
119	3
120	3