A066763 - cp's OEIS frontend

A066763 Numbers k such that (k, phi(k)) lies on a circle with integral radius centered at the origin, i.e., k^2 + phi(k)^2 is a square.

n	a(n)
1	15
2	45
3	70
4	75
5	135
6	140
7	225
8	280
9	350
10	375
11	377
12	405
13	490
14	560
15	627
16	665
17	675
18	700
19	980
20	1120
21	1125
22	1215
23	1400
24	1750
25	1875
26	1881
27	1960
28	2025
29	2240
30	2450
31	2800
32	3325
33	3375
34	3430
35	3500
36	3645
37	3655
38	3920
39	4480
40	4655
41	4900
42	4901
43	5600
44	5625
45	5643
46	6075

[15, 45, 70, 75, 135, 140, 225, 280, 350, 375, 377, 405, 490, 560, 627, 665, 675, 700, 980, 1120, 1125, 1215, 1400, 1750, 1875, 1881, 1960, 2025, 2240, 2450, 2800, 3325, 3375, 3430, 3500, 3645, 3655, 3920, 4480, 4655, 4900, 4901, 5600, 5625, 5643, 6075]

cp's OEIS Frontend

A066763 Numbers k such that (k, phi(k)) lies on a circle with integral radius centered at the origin, i.e., k^2 + phi(k)^2 is a square.

Table of values

List of values