239591481525domain: NAppears in sequencesa(n) = T(n,0) + T(n,1) + ... + T(n,n), T given by A027144.at n=28A027151Expansion of (1-x)/(1 + 6*x - 3*x^2).at n=14A099842Number of septenary sequences of length n such that no two consecutive terms have distance 5.at n=14A287811