# A154256 (b-file synthesized from sequence entry) 1 1 2 2 3 10 4 102 5 1578 6 32920 7 864813 8 27405798 9 1017153322 10 43271534196 11 2075757894648 12 110845691264880 13 6521081183455941 14 419050045344986432 15 29204306270878653424 16 2193909534863339799870 17 176728502294889963614250