# A291632 (b-file synthesized from sequence entry) 0 0 1 1 2 2 3 9 4 28 5 125 6 486 7 2317 8 10424 9 53433 10 267850 11 1470161 12 8032212 13 46925749 14 275437358 15 1702883925 16 10630404976 17 69192858737 18 455957606034 19 3110617216153 20 21512638153100 21 153234193139181 22 1107087138215542 23 8206182165264029 24 61703155328534568