# A002073 (b-file synthesized from sequence entry) 0 1 1 -3 2 3 3 2 4 -48 5 -362 6 -49711 7 13952 8 574406627 9 64140842 10 -841796802304 11 -326397876886 12 -23544490420768844 13 45123679545344 14 449339765798227104271 15 17766371321955738181048 16 -20395677580116057792512 17 -74026374065532274752108118