# A091096 (b-file synthesized from sequence entry)
0 1
1 5
2 -15
3 125
4 -375
5 3125
6 -9375
7 78125
8 -234375
9 1953125
10 -5859375
11 48828125
12 -146484375
13 1220703125
14 -3662109375
15 30517578125
16 -91552734375
17 762939453125
18 -2288818359375
19 19073486328125
20 -57220458984375
21 476837158203125
22 -1430511474609375