# A290603 (b-file synthesized from sequence entry)
0 2
1 -1
2 14
3 -35
4 364
5 -14560
6 79040
7 -1521520
8 304304000
9 -852051200
10 24012352000
11 -2245154912000
12 25560225152000
13 -949379791360000
14 114305326879744000
15 -1643139073896320000
16 75777707878512640000
17 -33493746882302586880000
18 193911166160699187200000
19 -10684505255454525214720000
20 1862156630236360108851200000