A385356 - cp's OEIS frontend

A385356 Numbers x such that there exist two integers 0 and z>0 such that sigma(x)^2 = sigma(y)^2 = x^2 + y^2 + z^2.

n	a(n)
1	2
2	40
3	164
4	196
5	224
6	1120
7	3040
8	13440
9	22932
10	44200
11	76160
12	90848
13	91720
14	174592
15	530200
16	619840
17	687184
18	872960
19	1686400
20	1767040
21	1807120
22	1927680
23	1990912
24	2154880
25	3653760
26	4286880
27	5637632
28	5759680
29	6442128
30	8225280
31	8943800
32	9264320
33	9465600
34	9694080

[2, 40, 164, 196, 224, 1120, 3040, 13440, 22932, 44200, 76160, 90848, 91720, 174592, 530200, 619840, 687184, 872960, 1686400, 1767040, 1807120, 1927680, 1990912, 2154880, 3653760, 4286880, 5637632, 5759680, 6442128, 8225280, 8943800, 9264320, 9465600, 9694080]

cp's OEIS Frontend

A385356 Numbers x such that there exist two integers 0 and z>0 such that sigma(x)^2 = sigma(y)^2 = x^2 + y^2 + z^2.

Table of values

List of values