A064917 - cp's OEIS frontend

A064917 a(n) is the result of beginning with n and iterating k -> A064916(k) until a prime is reached.

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

[2, 3, 3, 5, 3, 7, 5, 5, 3, 11, 7, 13, 5, 7, 5, 17, 3, 19, 11, 5, 7, 23, 13, 5, 5, 11, 7, 29, 5, 31, 17, 13, 3, 11, 19, 37, 11, 7, 5, 41, 7, 43, 23, 17, 13, 47, 5, 13, 5, 19, 11, 53, 7, 7, 29, 5, 5, 59, 31, 61, 17, 23, 13, 17, 3, 67, 11, 5, 19, 71, 37, 73, 11, 11, 7, 17, 5, 79, 41, 29, 7]

cp's OEIS Frontend

A064917 a(n) is the result of beginning with n and iterating k -> A064916(k) until a prime is reached.

Table of values

List of values

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

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

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