A347884 - cp's OEIS frontend

A347884 Odd composites k for which A003415(sigma(k))-k is strictly positive and a multiple of A003415(k). Here A003415 is the arithmetic derivative.

n	a(n)
1	963
2	969
3	5871
4	10479
5	2308203
6	41240261
7	52024391
8	69989429
9	75384301
10	319255721
11	634457761
12	781718149
13	1184197307
14	1190942957
15	1195786661
16	2114464203

[963, 969, 5871, 10479, 2308203, 41240261, 52024391, 69989429, 75384301, 319255721, 634457761, 781718149, 1184197307, 1190942957, 1195786661, 2114464203]

cp's OEIS Frontend

A347884 Odd composites k for which A003415(sigma(k))-k is strictly positive and a multiple of A003415(k). Here A003415 is the arithmetic derivative.

Table of values

List of values