4640470641domain: NAppears in sequencesa(n) = (11*n + 8)^4.at n=23A017488a(n) = (12*n + 9)^4.at n=21A017632Smallest 4th power that contains exactly n occurrences of the string n.at n=4A109690Fourth powers that become prime when their most significant (leftmost) decimal digit is removed.at n=19A226092