# A253224 (b-file synthesized from sequence entry) 1 16 2 132 3 494 4 1498 5 3936 6 9630 7 22656 8 52110 9 118182 10 265458 11 591924 12 1311966 13 2892738 14 6348402 15 13873152 16 30199422 17 65504766 18 141618834 19 305248332 20 656098110