397953domain: NAppears in sequencesa(n) = n^2*(n-1)^3/4.at n=18A019584a(n) = ((n+1)*2^n + 1)*(2^n + 1)^(n-1).at n=4A171800Products of the 4th power of a prime and a distinct prime of power 3 (p^4*q^3).at n=23A179666Numbers k such that k^3 is the sum of two nonzero 4th powers.at n=16A291849