73720domain: NAppears in sequencesa(n) = T(8,n), array T given by A048483.at n=13A048491a(n) = A220371(n)/(4*A220371(n-1)).at n=23A193365Expansion of (1+5*x+7*x^2-x^3)/((1-2*x^2)*(1-x)*(1+x)).at n=26A224692