# A215683 (b-file synthesized from sequence entry) 0 1 1 0 2 0 3 -3 4 0 5 30 6 90 7 -588 8 -5040 9 11400 10 325080 11 336072 12 -25237080 13 -126955920 14 2273150880 15 25210740552 16 -217110741120 17 -4985924326080 18 16380284725440 19 1066531842442752 20 1493617498611840 21 -249776526926340480 22 -1647997041357152640 23 63281386481329443072