A019285 - cp's OEIS frontend

A019285 Let sigma_m (n) be result of applying sum-of-divisors function m times to n; call n (m,k)-perfect if sigma_m (n) = k*n; sequence gives the (2,8)-perfect numbers.

n	a(n)
1	60
2	240
3	960
4	4092
5	16368
6	58254
7	61440
8	65472
9	116508
10	466032
11	710400
12	983040
13	1864128
14	3932160
15	4190208
16	67043328
17	119304192
18	268173312
19	1908867072
20	7635468288
21	16106127360
22	711488165526
23	1098437885952
24	1422976331052

[60, 240, 960, 4092, 16368, 58254, 61440, 65472, 116508, 466032, 710400, 983040, 1864128, 3932160, 4190208, 67043328, 119304192, 268173312, 1908867072, 7635468288, 16106127360, 711488165526, 1098437885952, 1422976331052]

cp's OEIS Frontend

A019285 Let sigma_m (n) be result of applying sum-of-divisors function m times to n; call n (m,k)-perfect if sigma_m (n) = k*n; sequence gives the (2,8)-perfect numbers.

Table of values

List of values