# A236988 (b-file synthesized from sequence entry) 1 1 2 -20 3 140 4 200 5 -67600 6 3983200 7 -228488000 8 14375920000 9 -1002261520000 10 74864404160000 11 -5398716356800000 12 221997813232000000 13 54286859023072000000 14 -27326116497867200000000 15 9481971502321385600000000 16 -3155347494162485190400000000