A356420 - cp's OEIS frontend

A356420 Integers k such that for some m >= 0, psi(k) = rad(k)^m, where psi(k) = A001615(k) and rad(k) = A007947(k).

n	a(n)
1	1
2	18
3	108
4	648
5	3888
6	11250
7	23328
8	139968
9	337500
10	501126
11	839808
12	5038848
13	8696754
14	10125000
15	30233088
16	51114852
17	57177414
18	181398528
19	303750000
20	573985764
21	1088391168
22	2401451388
23	5018345916
24	5213714904
25	6530347008
26	9112500000
27	23981814018
28	26622318750
29	37883060424

[1, 18, 108, 648, 3888, 11250, 23328, 139968, 337500, 501126, 839808, 5038848, 8696754, 10125000, 30233088, 51114852, 57177414, 181398528, 303750000, 573985764, 1088391168, 2401451388, 5018345916, 5213714904, 6530347008, 9112500000, 23981814018, 26622318750, 37883060424]

cp's OEIS Frontend

A356420 Integers k such that for some m >= 0, psi(k) = rad(k)^m, where psi(k) = A001615(k) and rad(k) = A007947(k).

Table of values

List of values