A356548 - cp's OEIS frontend

A356548 Let S(n)=sigma(n)/3. Numbers k such that S^m(k)=k, 1/3-sociable numbers (of any order).

n	a(n)
1	120
2	672
3	7560
4	7680
5	8064
6	8184
7	8840
8	9600
9	10540
10	34944
11	36576
12	38080
13	65520
14	71680
15	75264
16	77748
17	90272
18	472416
19	510720
20	523776
21	605024
22	654080
23	1100190
24	1124352
25	14913024
26	16149760
27	27797760
28	33931072
29	34012160
30	459818240

[120, 672, 7560, 7680, 8064, 8184, 8840, 9600, 10540, 34944, 36576, 38080, 65520, 71680, 75264, 77748, 90272, 472416, 510720, 523776, 605024, 654080, 1100190, 1124352, 14913024, 16149760, 27797760, 33931072, 34012160, 459818240]

cp's OEIS Frontend

A356548 Let S(n)=sigma(n)/3. Numbers k such that S^m(k)=k, 1/3-sociable numbers (of any order).

Table of values

List of values