A134611 - cp's OEIS frontend

A134611 Nonprime numbers such that the root mean cube of their prime factors is an integer (where the root mean cube of c and d is ((c^3+d^3)/2)^(1/3)).

n	a(n)
1	1
2	4
3	8
4	9
5	16
6	25
7	27
8	32
9	49
10	64
11	81
12	121
13	125
14	128
15	169
16	243
17	256
18	289
19	343
20	361
21	512
22	529
23	625
24	729
25	841
26	961
27	1024
28	1331
29	1369
30	1512
31	1681
32	1849
33	2048
34	2187
35	2197
36	2209
37	2401
38	2809
39	3125
40	3481
41	3721
42	4096
43	4489
44	4913
45	5041
46	5329
47	6241
48	6561
49	6859
50	6889

[1, 4, 8, 9, 16, 25, 27, 32, 49, 64, 81, 121, 125, 128, 169, 243, 256, 289, 343, 361, 512, 529, 625, 729, 841, 961, 1024, 1331, 1369, 1512, 1681, 1849, 2048, 2187, 2197, 2209, 2401, 2809, 3125, 3481, 3721, 4096, 4489, 4913, 5041, 5329, 6241, 6561, 6859, 6889]

cp's OEIS Frontend

A134611 Nonprime numbers such that the root mean cube of their prime factors is an integer (where the root mean cube of c and d is ((c^3+d^3)/2)^(1/3)).

Table of values

List of values