1458432domain: NAppears in sequencesTheta series of laminated lattice LAMBDA_10.at n=19A006909Number of length n words on {0,1,2} with no four consecutive 0's.at n=13A209239Expansion of e.g.f. 1 / (1 + x + x^2/2 + log(1 - x)).at n=10A355284