1249198336domain: NAppears in sequencesa(n) = (7*n + 6)^4.at n=26A017056a(n) = (8*n + 4)^4.at n=23A017116a(n) = (10*n + 8)^4.at n=18A017368a(n) = (11*n + 1)^4.at n=17A017404a(n) = (12*n + 8)^4.at n=15A017620Lower of a pair of adjacent perfect powers, both with exponents > 2.at n=25A340700