A351974 - cp's OEIS frontend

A351974 a(n) is the first maximum reached by iterating the reduced Collatz function R on 4n-1: a(n) = R^s(4n-1), where R(k) = A139391(k) and s the number of iterations required.

n	a(n)
1	5
2	17
3	17
4	53
5	29
6	53
7	41
8	161
9	53
10	89
11	65
12	161
13	77
14	125
15	89
16	485
17	101
18	161
19	113
20	269
21	125
22	197
23	137
24	485
25	149
26	233
27	161
28	377
29	173
30	269
31	185
32	1457
33	197
34	305
35	209
36	485
37	221
38	341
39	233
40	809
41	245
42	377
43	257
44	593
45	269
46	413
47	281
48	1457
49	293
50	449
51	305
52	701
53	317
54	485

[5, 17, 17, 53, 29, 53, 41, 161, 53, 89, 65, 161, 77, 125, 89, 485, 101, 161, 113, 269, 125, 197, 137, 485, 149, 233, 161, 377, 173, 269, 185, 1457, 197, 305, 209, 485, 221, 341, 233, 809, 245, 377, 257, 593, 269, 413, 281, 1457, 293, 449, 305, 701, 317, 485]

cp's OEIS Frontend

A351974 a(n) is the first maximum reached by iterating the reduced Collatz function R on 4n-1: a(n) = R^s(4n-1), where R(k) = A139391(k) and s the number of iterations required.

Table of values

List of values