# A258079 (b-file synthesized from sequence entry) 1 1 2 2 3 6 4 10 5 36 6 168 7 1098 8 1204 9 2840 10 19488 11 1881124 12 3105700 13 445577184 14 105314212224 15 134633963520 16 2167649138304