A337673 - cp's OEIS frontend

A337673 a(n) is the sum of all positive integers whose Collatz orbit has length n.

n	a(n)
0	0
1	1
2	2
3	4
4	8
5	16
6	37
7	74
8	172
9	344
10	786
11	1572
12	3538
13	7206
14	16252
15	33112
16	73762
17	149967
18	330107
19	678610
20	1498356
21	3082302
22	6742487
23	13855154
24	30122440
25	62388962
26	135783788
27	281177482
28	608402189
29	1259151448
30	2711432766
31	5646008216
32	12172417990
33	25339969480
34	54409676729
35	113159496364

[0, 1, 2, 4, 8, 16, 37, 74, 172, 344, 786, 1572, 3538, 7206, 16252, 33112, 73762, 149967, 330107, 678610, 1498356, 3082302, 6742487, 13855154, 30122440, 62388962, 135783788, 281177482, 608402189, 1259151448, 2711432766, 5646008216, 12172417990, 25339969480, 54409676729, 113159496364]

cp's OEIS Frontend

A337673 a(n) is the sum of all positive integers whose Collatz orbit has length n.

Table of values

List of values