# A251121 (b-file synthesized from sequence entry) 1 10 2 40 3 108 4 266 5 580 6 1214 7 2420 8 4702 9 8926 10 16680 11 30766 12 56180 13 101734 14 182956 15 327080 16 581742 17 1030000 18 1816290 19 3191136 20 5588050 21 9755530 22 16983260 23 29489098