328756domain: NAppears in sequencesa(n) = a(n-1) + a(n-2) + 1, with a(0)=3, a(1)=8.at n=23A022407Number of necklaces with 8 black beads and n-8 white beads.at n=24A032193Number of necklaces with n white beads and 3*n black beads.at n=8A261497