A134603 - cp's OEIS frontend

A134603 Numbers (excluding primes and powers of primes) such that the square mean of their prime factors is an integer (where the square mean of c and d is sqrt((c^2+d^2)/2)).

n	a(n)
1	119
2	161
3	351
4	378
5	455
6	527
7	595
8	721
9	845
10	918
11	959
12	1045
13	1081
14	1241
15	1265
16	1323
17	1375
18	1547
19	1615
20	1792
21	1855
22	2047
23	2145
24	2175
25	2345
26	2457
27	2645
28	2665
29	2737
30	3281
31	3367
32	3509
33	3713
34	3835
35	3887
36	3995
37	4207
38	4305
39	4347
40	4625
41	4633
42	4655
43	4681
44	5000

[119, 161, 351, 378, 455, 527, 595, 721, 845, 918, 959, 1045, 1081, 1241, 1265, 1323, 1375, 1547, 1615, 1792, 1855, 2047, 2145, 2175, 2345, 2457, 2645, 2665, 2737, 3281, 3367, 3509, 3713, 3835, 3887, 3995, 4207, 4305, 4347, 4625, 4633, 4655, 4681, 5000]

cp's OEIS Frontend

A134603 Numbers (excluding primes and powers of primes) such that the square mean of their prime factors is an integer (where the square mean of c and d is sqrt((c^2+d^2)/2)).

Table of values

List of values