A092584 - cp's OEIS frontend

A092584 Numbers k such that sigma(phi(k)) == phi(sigma(k)) (mod k), that is, A033632(k)/k is an integer.

n	a(n)
1	1
2	5
3	9
4	157
5	225
6	242
7	516
8	729
9	3872
10	13932
11	14406
12	17672
13	18225
14	20124
15	21780
16	29262
17	29616
18	45996
19	65025
20	76832
21	92778
22	95916
23	106092
24	106308
25	114630
26	114930
27	121872
28	125652
29	140130
30	140625
31	145794
32	149124
33	160986
34	179562
35	185100
36	234876

[1, 5, 9, 157, 225, 242, 516, 729, 3872, 13932, 14406, 17672, 18225, 20124, 21780, 29262, 29616, 45996, 65025, 76832, 92778, 95916, 106092, 106308, 114630, 114930, 121872, 125652, 140130, 140625, 145794, 149124, 160986, 179562, 185100, 234876]

cp's OEIS Frontend

A092584 Numbers k such that sigma(phi(k)) == phi(sigma(k)) (mod k), that is, A033632(k)/k is an integer.

Table of values

List of values