102839domain: NAppears in sequencesa(n) = floor(n*phi^19), where phi is the golden ratio, A001622.at n=11A004934a(n) = round(n*phi^19), where phi is the golden ratio, A001622.at n=11A004954Number of Fermat pseudoprimes to base 3 less than 10^n.at n=11A114245Records in A361321.at n=38A361325