1060501domain: NAppears in sequencesNumber of solenoidal flows (flow in = flow out) in a 3 X 3 square array with integer velocities -n .. n.at n=20A068722Expansion of x/(1 - x - 100*x^2).at n=6A162670a(n) = n^2*(3*n^2 - 1)/2.at n=29A260810