# A013209 (b-file synthesized from sequence entry) 1 0 2 1 3 -2 4 7 5 -24 6 173 7 -1280 8 11779 9 -120960 10 1474969 11 -19695232 12 296068991 13 -4847011840 14 87094091589 15 -1687646744576 16 35308668668155 17 -789939274514432 18 18872654969343537 19 -478658276989173760