# A111605 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 2 5 8 6 -40 7 144 8 2448 9 -17280 10 -71424 11 0 12 1198080 13 0 14 -18063360 15 418037760 16 -7498137600 17 -115688079360 18 -587977850880 19 12300343050240 20 -540240522117120 21 -36548032147292160 22 487948583538524160 23 -2339225182084792320