A280936 - cp's OEIS frontend

A280936 Numbers k such that phi(k) = rad(k) * sopfr(k), where phi(k) is the Euler totient function of k, rad(k) the squarefree kernel of k and sopfr(k) the integer log of k.

n	a(n)
1	288
2	1225
3	4116
4	35378
5	54450
6	1693776
7	5969418
8	9396618
9	24509696310
10	246465324525
11	5876919827760
12	71516027973936
13	89547553939440
14	370544528449590
15	4014732589250736
16	565869696542012100

[288, 1225, 4116, 35378, 54450, 1693776, 5969418, 9396618, 24509696310, 246465324525, 5876919827760, 71516027973936, 89547553939440, 370544528449590, 4014732589250736, 565869696542012100]

cp's OEIS Frontend

A280936 Numbers k such that phi(k) = rad(k) * sopfr(k), where phi(k) is the Euler totient function of k, rad(k) the squarefree kernel of k and sopfr(k) the integer log of k.

Table of values

List of values