# A282281 (b-file synthesized from sequence entry) 1 2 2 3 3 8 4 12 5 24 6 105 7 140 8 231 9 234 10 260 11 294 12 354 13 602 14 813 15 1562 16 2961 17 3450 18 5622 19 8121 20 9014 21 23052 22 38505 23 41139 24 63576