A351443 - cp's OEIS frontend

A351443 Odd numbers k for which A003958(sigma(k)) = A003958(k), where A003958 is multiplicative with a(p^e) = (p-1)^e and sigma is the sum of divisors function.

n	a(n)
1	1
2	49
3	40905
4	106353
5	140211
6	275301
7	302697
8	499041
9	597213
10	1094913
11	1284417
12	1578933
13	2004345
14	2266137
15	2560653
16	3247857
17	3444201
18	3738717
19	4425921
20	5014953
21	5123817
22	5211297
23	5407641
24	5505813
25	5996673
26	6193017
27	6870339
28	7174737
29	8156457
30	8941833
31	9432693
32	9825381
33	9923553

[1, 49, 40905, 106353, 140211, 275301, 302697, 499041, 597213, 1094913, 1284417, 1578933, 2004345, 2266137, 2560653, 3247857, 3444201, 3738717, 4425921, 5014953, 5123817, 5211297, 5407641, 5505813, 5996673, 6193017, 6870339, 7174737, 8156457, 8941833, 9432693, 9825381, 9923553]

cp's OEIS Frontend

A351443 Odd numbers k for which A003958(sigma(k)) = A003958(k), where A003958 is multiplicative with a(p^e) = (p-1)^e and sigma is the sum of divisors function.

Table of values

List of values