A085308 - cp's OEIS frontend

A085308 Iterate function described in A085308 (= reverse concatenation of prime factors); a(n) is either 1# the fixed point[=prime] if it exists at all: 2# a(2k)=1 labels that no convergence with most even initial values, in contrary mostly rapid divergence is the case; 3# a(n)=0 if n=1 or if the iteration results in nontrivial attractor with cycle length larger than one.

n	a(n)
1	0
2	2
3	3
4	2
5	5
6	2
7	7
8	2
9	3
10	1
11	11
12	2
13	13
14	2
15	53
16	2
17	17
18	2
19	19
20	1
21	73
22	2
23	23
24	2
25	5
26	1
27	3
28	2
29	29
30	1
31	31
32	2
33	113
34	2
35	53
36	2
37	37
38	2
39	197
40	1
41	41
42	1
43	43
44	2
45	53
46	1
47	47
48	2
49	7
50	1
51	173
52	1
53	53
54	2
55	41113
56	2
57	193
58	1
59	59
60	1
61	61
62	1
63	73
64	2
65	53
66	1
67	67
68	1
69	233
70	1
71	2
72	73
73	1
74	53
75	1
76	197
77	1
78	79
79	1
80	3
81	1
82	83
83	1
84	53
85	1

[0, 2, 3, 2, 5, 2, 7, 2, 3, 1, 11, 2, 13, 2, 53, 2, 17, 2, 19, 1, 73, 2, 23, 2, 5, 1, 3, 2, 29, 1, 31, 2, 113, 2, 53, 2, 37, 2, 197, 1, 41, 1, 43, 2, 53, 1, 47, 2, 7, 1, 173, 1, 53, 2, 41113, 2, 193, 1, 59, 1, 61, 1, 73, 2, 53, 1, 67, 1, 233, 1, 2, 73, 1, 53, 1, 197, 1, 79, 1, 3, 1, 83, 1, 53, 1]

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