49884domain: NAppears in sequencesFibonacci sequence beginning 2, 30.at n=17A022377a(n)=a(n-1)+a(m), where m=2n-2-2^(p+1) and 2^p<n-1<=2^(p+1), for n >= 4.at n=40A050067Moebius transform of A000013 (starting at term 0).at n=21A054170A hexagonal spiral Fibonacci sequence.at n=22A094925