# A189869 (b-file synthesized from sequence entry) 1 1 2 0 3 0 4 2 5 10 6 4 7 28 8 20 9 56 10 72 11 288 12 1304 13 6368 14 22884 15 125864 16 755412 17 4565572 18 29862256 19 207238124 20 1540506028 21 11774180220