A331035 - cp's OEIS frontend

A331035 a(n) = sigma^m(N)/N for N = A019276(n) (megaperfect numbers), where m(N) = min {m: N | sigma^m(N)} reaches record values; sigma^m is m-fold iteration of A000203.

n	a(n)
1	1
2	2
3	5
4	24
5	168
6	1834560
7	6516224
8	881280
9	517517500266693633076805172570524811961093324800
10	12291248474277267848395134563637563923813851715476607482451722240
11	9432427640268436606451425375305719340471711381221905226790680395776

[1, 2, 5, 24, 168, 1834560, 6516224, 881280, 517517500266693633076805172570524811961093324800, 12291248474277267848395134563637563923813851715476607482451722240, 9432427640268436606451425375305719340471711381221905226790680395776]

cp's OEIS Frontend

A331035 a(n) = sigma^m(N)/N for N = A019276(n) (megaperfect numbers), where m(N) = min {m: N | sigma^m(N)} reaches record values; sigma^m is m-fold iteration of A000203.

Table of values

List of values