A355914 - cp's OEIS frontend

A355914 a(n) = gcd(b(n-1),b(n)), where b(n) = A351871(n).

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

[1, 2, 1, 5, 2, 1, 1, 4, 1, 1, 2, 1, 1, 2, 1, 1, 4, 1, 1, 8, 2, 3, 3, 6, 1, 1, 6, 1, 1, 6, 10, 2, 1, 1, 2, 1, 1, 2, 1, 1, 4, 2, 1, 1, 2, 30, 5, 5, 8, 1, 1, 4, 43, 1, 2, 1, 3, 4, 1, 3, 12, 1, 1, 2, 1, 1, 2, 1, 1, 2, 3, 1, 2, 1, 1, 2, 25, 1, 4, 1, 1, 6, 1, 1, 6]

cp's OEIS Frontend

A355914 a(n) = gcd(b(n-1),b(n)), where b(n) = A351871(n).

Table of values

List of values

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

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

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