A342659 - cp's OEIS frontend

A342659 The least prime that does not divide the n-th multiply perfect number: a(n) = A053669(A007691(n)).

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

[2, 5, 3, 7, 3, 5, 3, 11, 11, 5, 11, 7, 3, 7, 5, 3, 11, 5, 3, 13, 11, 7, 3, 7, 3, 11, 5, 11, 5, 13, 11, 5, 11, 11, 7, 7, 5, 13, 5, 5, 3, 11, 5, 11, 23, 11, 11, 11, 11, 11, 11, 23, 11, 13, 7, 13, 23, 11, 5, 5, 13, 5, 11, 5, 17, 17, 17, 17, 17, 17, 17, 17, 13, 17, 17, 11, 19, 11, 23, 19, 11, 5, 7, 11, 5, 7, 17, 17, 7, 7, 5]

cp's OEIS Frontend

A342659 The least prime that does not divide the n-th multiply perfect number: a(n) = A053669(A007691(n)).

Table of values

List of values

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

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

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