84146domain: NAppears in sequencesSums of two distinct prime 4th powers.at n=17A130873Quartan semiprimes: semiprimes of the form x^4 + y^4, x>0, y>0.at n=37A182277Sums of two distinct odd fourth powers.at n=30A342832Sums of two odd fourth powers.at n=37A343588