A053590 - cp's OEIS frontend

A053590 Product of the longest chain of consecutive primes (starting with A020639(n)) which divides n.

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

[1, 2, 3, 2, 5, 6, 7, 2, 3, 2, 11, 6, 13, 2, 15, 2, 17, 6, 19, 2, 3, 2, 23, 6, 5, 2, 3, 2, 29, 30, 31, 2, 3, 2, 35, 6, 37, 2, 3, 2, 41, 6, 43, 2, 15, 2, 47, 6, 7, 2, 3, 2, 53, 6, 5, 2, 3, 2, 59, 30, 61, 2, 3, 2, 5, 6, 67, 2, 3, 2, 71, 6, 73, 2, 15, 2, 77, 6, 79, 2, 3, 2, 83, 6, 5, 2, 3, 2, 89, 30]

cp's OEIS Frontend

A053590 Product of the longest chain of consecutive primes (starting with A020639(n)) which divides n.

Table of values

List of values

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

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

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