# A209798 (b-file synthesized from sequence entry) 1 2 2 5 3 12 4 33 5 108 6 411 7 1760 8 8287 9 42302 10 231959 11 1357150 12 8427205 13 55288886 14 381798657 15 2765917104 16 20960284309 17 165729739624 18 1364153612335 19 11665484410132 20 103448316470763 21 949739632313522 22 9013431476894667 23 88304011710168714 24 891917738589610601