# A291561 (b-file synthesized from sequence entry) 1 1 2 10 3 315 4 18900 5 1819125 6 255405150 7 49165491375 8 12417798393000 9 3981456609755625 10 1579311121869731250 11 759174856282779811875 12 434800144961955710437500 13 292511797523155704196828125 14 228384211143079261353677343750 15 204811697921525723306815646484375 16 209071781238293458351597411931250000 17 241020562808770177455950891441994140625 18 311597054671244174125111099536008660156250