|
| |
|
|
A116002
|
|
n*phi(n)*phi(phi(n)) is a square.
|
|
3
| |
|
|
1, 8, 27, 32, 108, 128, 243, 250, 432, 512, 686, 972, 1000, 1331, 1728, 2048, 2187, 2197, 2744, 3375, 3888, 4000, 5324, 6174, 6250, 6912, 8192, 8748, 8788, 9826, 10976, 13500, 15552, 16000, 19683, 19773, 21296, 24696, 25000, 27648, 30375
(list; graph; refs; listen; history; internal format)
|
| |
| |
|
|
