# A375989 (b-file synthesized from sequence entry)
0 1
1 -5
2 5
3 30
4 180
5 1410
6 14790
7 203880
8 3559560
9 75659760
10 1893764160
11 54430097760
12 1763357958000
13 63501756552720
14 2514747808468080
15 108572621062573440
16 5074353268651935360
17 255201626973301102080
18 13740802156877800538880
19 788580746923723472839680