# A013043 (b-file synthesized from sequence entry) 0 1 1 -4 2 64 3 -2464 4 176000 5 -20274304 6 3418964992 7 -795860555520 8 244118384340992 9 -95517422279237632 10 46396805200416325632 11 -27406009571869059219456 12 19339103621838228194852864