A362959 - cp's OEIS frontend

A362959 Numbers k such that the Collatz orbit that begins with k does not contain an odd prime afterwards.

n	a(n)
1	4
2	5
3	8
4	16
5	21
6	32
7	42
8	64
9	84
10	85
11	113
12	128
13	168
14	170
15	227
16	256
17	336
18	340
19	341
20	453
21	512
22	672
23	680
24	682
25	906
26	909
27	1024
28	1344
29	1360
30	1364
31	1365
32	1812
33	1813
34	1818
35	2048
36	2417
37	2688
38	2720
39	2728
40	2730
41	3624
42	3626
43	3636
44	3637
45	4096
46	5376
47	5440
48	5456
49	5460
50	5461
51	7248

[4, 5, 8, 16, 21, 32, 42, 64, 84, 85, 113, 128, 168, 170, 227, 256, 336, 340, 341, 453, 512, 672, 680, 682, 906, 909, 1024, 1344, 1360, 1364, 1365, 1812, 1813, 1818, 2048, 2417, 2688, 2720, 2728, 2730, 3624, 3626, 3636, 3637, 4096, 5376, 5440, 5456, 5460, 5461, 7248]

cp's OEIS Frontend

A362959 Numbers k such that the Collatz orbit that begins with k does not contain an odd prime afterwards.

Table of values

List of values