A361130 - cp's OEIS frontend

A361130 Let b = A360519; let Lg = gcd(b(n-1),b(n)), Rg = gcd(b(n),b(n+1)); let L(n) = prod_{primes p|Lg} p-part of b(n), R(n) = prod_{primes p|Rg} p-part of b(n), M(n) = b(n)/(L(n)*R(n)); sequence gives R(n).

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

[2, 5, 7, 3, 4, 5, 11, 3, 2, 7, 11, 9, 5, 8, 11, 13, 3, 8, 7, 13, 5, 2, 17, 7, 9, 4, 13, 17, 3, 2, 19, 5, 9, 16, 11, 17, 5, 2, 23, 3, 19, 4, 13, 9, 25, 2, 29, 3, 31, 2, 7, 3, 37, 2, 17, 9, 41, 2, 5, 23, 7, 12, 5, 29, 7, 2, 27, 43, 5, 4, 3, 47, 5, 2, 9, 49, 19, 8, 3, 5, 31, 4, 43, 7]

cp's OEIS Frontend

A361130 Let b = A360519; let Lg = gcd(b(n-1),b(n)), Rg = gcd(b(n),b(n+1)); let L(n) = prod_{primes p|Lg} p-part of b(n), R(n) = prod_{primes p|Rg} p-part of b(n), M(n) = b(n)/(L(n)*R(n)); sequence gives R(n).

Table of values

List of values

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

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

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