A029909 - cp's OEIS frontend

A029909 Starting with n (but omitting the primes), repeatedly sum prime factors (counted with multiplicity) until reaching a limit.

n	a(n)
1	0
2	4
3	5
4	5
5	5
6	7
7	7
8	5
9	5
10	5
11	5
12	5
13	7
14	13
15	5
16	7
17	5
18	5
19	11
20	7
21	7
22	5
23	19
24	7
25	7
26	7
27	5
28	11
29	7
30	5
31	11
32	7
33	11
34	5
35	7
36	5
37	17
38	11
39	5
40	13
41	13
42	31
43	7
44	5
45	13
46	7
47	5
48	5
49	7
50	5
51	5
52	7
53	5
54	13
55	23
56	5
57	5
58	13
59	7
60	43
61	5
62	13
63	11
64	7
65	17
66	13
67	5
68	5
69	19
70	5
71	5
72	13
73	5
74	17
75	5
76	13
77	19
78	5
79	5
80	13
81	5
82	11
83	5
84	5
85	11
86	5

[0, 4, 5, 5, 5, 7, 7, 5, 5, 5, 5, 5, 7, 13, 5, 7, 5, 5, 11, 7, 7, 5, 19, 7, 7, 7, 5, 11, 7, 5, 11, 7, 11, 5, 7, 5, 17, 11, 5, 13, 13, 31, 7, 5, 13, 7, 5, 5, 7, 5, 5, 7, 5, 13, 23, 5, 5, 13, 7, 43, 5, 13, 11, 7, 17, 13, 5, 5, 19, 5, 5, 13, 5, 17, 5, 13, 19, 5, 5, 13, 5, 11, 5, 5, 11, 5]

cp's OEIS Frontend

A029909 Starting with n (but omitting the primes), repeatedly sum prime factors (counted with multiplicity) until reaching a limit.

Table of values

List of values

n	a(n)
1	0
2	4
3	5
4	5
5	5
6	7
7	7
8	5
9	5
10	5
11	5
12	5
13	7
14	13
15	5
16	7
17	5
18	5
19	11
20	7
21	7
22	5
23	19
24	7
25	7
26	7
27	5
28	11
29	7
30	5
31	11
32	7
33	11
34	5
35	7
36	5
37	17
38	11
39	5
40	13
41	13
42	31
43	7
44	5
45	13
46	7
47	5
48	5
49	7
50	5
51	5
52	7
53	5
54	13
55	23
56	5
57	5
58	13
59	7
60	43
61	5
62	13
63	11
64	7
65	17
66	13
67	5
68	5
69	19
70	5
71	5
72	13
73	5
74	17
75	5
76	13
77	19
78	5
79	5
80	13
81	5
82	11
83	5
84	5
85	11
86	5

n	a(n)
1	0
2	4
3	5
4	5
5	5
6	7
7	7
8	5
9	5
10	5
11	5
12	5
13	7
14	13
15	5
16	7
17	5
18	5
19	11
20	7
21	7
22	5
23	19
24	7
25	7
26	7
27	5
28	11
29	7
30	5
31	11
32	7
33	11
34	5
35	7
36	5
37	17
38	11
39	5
40	13
41	13
42	31
43	7
44	5
45	13
46	7
47	5
48	5
49	7
50	5
51	5
52	7
53	5
54	13
55	23
56	5
57	5
58	13
59	7
60	43
61	5
62	13
63	11
64	7
65	17
66	13
67	5
68	5
69	19
70	5
71	5
72	13
73	5
74	17
75	5
76	13
77	19
78	5
79	5
80	13
81	5
82	11
83	5
84	5
85	11
86	5

n	a(n)
1	0
2	4
3	5
4	5
5	5
6	7
7	7
8	5
9	5
10	5
11	5
12	5
13	7
14	13
15	5
16	7
17	5
18	5
19	11
20	7
21	7
22	5
23	19
24	7
25	7
26	7
27	5
28	11
29	7
30	5
31	11
32	7
33	11
34	5
35	7
36	5
37	17
38	11
39	5
40	13
41	13
42	31
43	7
44	5
45	13
46	7
47	5
48	5
49	7
50	5
51	5
52	7
53	5
54	13
55	23
56	5
57	5
58	13
59	7
60	43
61	5
62	13
63	11
64	7
65	17
66	13
67	5
68	5
69	19
70	5
71	5
72	13
73	5
74	17
75	5
76	13
77	19
78	5
79	5
80	13
81	5
82	11
83	5
84	5
85	11
86	5