Integers x such that there exist four integers 0<y<=z<=t<=w such that psi(x)^5 = x^5 + y^5 + z^5 + t^5 + w^5.

A390006

Integers x such that there exist four integers 0<y<=z<=t<=w such that psi(x)^5 = x^5 + y^5 + z^5 + t^5 + w^5.