# A212797 (b-file synthesized from sequence entry) 1 2 2 32 3 294 4 2304 5 16810 6 117600 7 799694 8 5326848 9 34928082 10 226195360 11 1450199542 12 9220780800 13 58221203066 14 365440965344 15 2282085037470 16 14187697422336 17 87860208024994 18 542209573735200 19 3335797263902918 20 20465738163774720 21 125247216613782858