76293945312domain: NAppears in sequencesCatapolyoctagons (see Cyvin et al. for precise definition).at n=16A121177a(n) = (5^n - 1)/2.at n=16A125831Number of compositions of odd natural numbers into 8 parts <=n.at n=24A191899a(n) = 5*a(n-2) + 2, a(0) = 1, a(1) = 2.at n=31A238366