# A030131 (b-file synthesized from sequence entry) 0 1 1 -1 2 -4 3 -16 4 -73 5 -341 6 -1659 7 -8483 8 -44144 9 -236626 10 -1282073 11 -7078309 12 -39389088 13 -221480060 14 -1259127130 15 -7134579098 16 -41630476786 17 -232579012470 18 -1437468607632 19 -7355318282652 20 -54666868678671