1871773696domain: NAppears in sequencesa(n) = (10*n + 8)^4.at n=20A017368a(n) = (11*n + 10)^4.at n=18A017512a(n) = (12*n + 4)^4.at n=17A017572Ulam numbers that are fourth powers.at n=15A173544Squares whose arithmetic derivative (A003415) is a cube.at n=10A352330