A293980 - cp's OEIS frontend

A293980 Number of iterations of A174221 (the PrimeLatz map) required to enter a loop, for initial value n, or -1 if this never happens.

n	a(n)
0	0
1	1
2	2
3	1
4	3
5	1
6	2
7	6
8	4
9	0
10	2
11	0
12	3
13	0
14	7
15	0
16	5
17	0
18	0
19	14
20	3
21	0
22	0
23	2
24	4
25	0
26	0
27	21
28	8
29	29
30	0
31	18
32	6
33	12
34	0
35	69
36	0
37	0
38	15
39	66
40	4
41	6
42	0
43	21
44	0
45	15
46	3
47	31
48	5
49	39
50	0
51	12
52	0
53	3
54	22
55	28
56	9
57	2
58	30
59	25
60	0
61	0
62	19
63	6
64	7
65	30
66	13
67	19
68	0
69	27
70	70
71	11
72	0
73	24
74	0
75	30
76	16
77	10
78	67
79	15
80	5
81	21
82	7
83	16180
84	0

[0, 1, 2, 1, 3, 1, 2, 6, 4, 0, 2, 0, 3, 0, 7, 0, 5, 0, 0, 14, 3, 0, 0, 2, 4, 0, 0, 21, 8, 29, 0, 18, 6, 12, 0, 69, 0, 0, 15, 66, 4, 6, 0, 21, 0, 15, 3, 31, 5, 39, 0, 12, 0, 3, 22, 28, 9, 2, 30, 25, 0, 0, 19, 6, 7, 30, 13, 19, 0, 27, 70, 11, 0, 24, 0, 30, 16, 10, 67, 15, 5, 21, 7, 16180, 0]

cp's OEIS Frontend

A293980 Number of iterations of A174221 (the PrimeLatz map) required to enter a loop, for initial value n, or -1 if this never happens.

Table of values

List of values