104922domain: NAppears in sequencesa(n) = 3*a(n-1) - 4*a(n-3) + a(n-6).at n=13A019493Generalized ballot transform of generalized Catalan numbers C(2;n)=A064062(n).at n=7A130649a(n) = 144*n^2 - 2*n.at n=26A158135