# A071078 (b-file synthesized from sequence entry) 1 1 2 -3 3 8 4 -21 5 45 6 -81 7 -504 8 -327 9 -95 10 -27 11 3744 12 -514125 13 42577129 14 -594343521 15 6384803528 16 55828902985 17 222653960625 18 -24898185972135 19 370012327363008 20 -5108693773098321 21 66203904684406485