3359200domain: NAppears in sequencesa(n) = (n+1)*binomial(n+1, 9).at n=11A027769a(n) = (n+1)*binomial(n+1,11).at n=9A027771Number of lattice paths of 2*n+2 steps in the first quadrant from (0,0) to (n,n).at n=9A253487