A068484 - cp's OEIS frontend

A068484 Numbers k that divide phi(k)^2 + sigma(k)^2.

n	a(n)
1	1
2	2
3	10
4	45
5	65
6	180
7	212
8	222
9	369
10	588
11	810
12	864
13	1274
14	1521
15	1836
16	2548
17	2940
18	3114
19	3552
20	4770
21	5496
22	5684
23	6027
24	6642
25	8820
26	9140
27	10464
28	10614
29	13311
30	14688
31	15210
32	20737
33	21600
34	22776
35	26900
36	27000
37	27270
38	28476
39	28518
40	42212
41	42336

[1, 2, 10, 45, 65, 180, 212, 222, 369, 588, 810, 864, 1274, 1521, 1836, 2548, 2940, 3114, 3552, 4770, 5496, 5684, 6027, 6642, 8820, 9140, 10464, 10614, 13311, 14688, 15210, 20737, 21600, 22776, 26900, 27000, 27270, 28476, 28518, 42212, 42336]

cp's OEIS Frontend

A068484 Numbers k that divide phi(k)^2 + sigma(k)^2.

Table of values

List of values