# A009654 (b-file synthesized from sequence entry) 0 0 1 1 2 -3 3 10 4 -60 5 535 6 -5545 7 65182 8 -880992 9 13534757 10 -231683143 11 4360580794 12 -89533557212 13 1992568741579 14 -47774231187709 15 1227455840670542 16 -33641659053337888 17 979722562830640169 18 -30211554791018748267