A274796 - cp's OEIS frontend

A274796 Numbers n such that s2/s1 is an integer, where s1 is the sum of the odd numbers and s2 is the sum of the even numbers in the Collatz (3x+1) iteration of n.

n	a(n)
1	1
2	2
3	4
4	5
5	8
6	16
7	20
8	32
9	64
10	80
11	128
12	186
13	256
14	320
15	512
16	704
17	1024
18	1280
19	1344
20	2048
21	3808
22	4096
23	5090
24	5120
25	6464
26	8192
27	10152
28	15904
29	16384
30	20480
31	21760
32	28672
33	32768
34	34640
35	59392
36	62132
37	65536
38	81920
39	106496
40	131072
41	138880
42	217824
43	262144
44	327680

[1, 2, 4, 5, 8, 16, 20, 32, 64, 80, 128, 186, 256, 320, 512, 704, 1024, 1280, 1344, 2048, 3808, 4096, 5090, 5120, 6464, 8192, 10152, 15904, 16384, 20480, 21760, 28672, 32768, 34640, 59392, 62132, 65536, 81920, 106496, 131072, 138880, 217824, 262144, 327680]

cp's OEIS Frontend

A274796 Numbers n such that s2/s1 is an integer, where s1 is the sum of the odd numbers and s2 is the sum of the even numbers in the Collatz (3x+1) iteration of n.

Table of values

List of values