112268domain: NAppears in sequencesCoordination sequence for A_12 lattice.at n=3A035838Number of integer sequences of length n+1 with sum zero and sum of absolute values 6.at n=11A157052G.f. satisfies A(x) = 1 + x^3*A(x)^2*(1 + x*A(x)).at n=25A365723