127008768domain: NAppears in sequencesa(n) = 2^(n-4)*C(n,4).at n=15A003472One half of sixth unsigned column of Lanczos' triangle A053125.at n=7A054330a(n) = 2^(n-4)*(n+2)*(n+3)*(n+4)*(n+5)*(n+6)/15.at n=14A080952