# A179074 (b-file synthesized from sequence entry) 1 -2 2 -32 3 256 4 -8192 5 -262144 6 5242880 7 -33554432 8 -2684354560 9 8589934592000 10 932385860354048 11 160159261748363264 12 -1125899906842624 13 -225179981368524800 14 5260204364768739328 15 43977037871723571052544