# A180869 (b-file synthesized from sequence entry)
0 1
1 1
2 -1
3 3
4 -11
5 49
6 -259
7 1588
8 -11080
9 86589
10 -747802
11 7053992
12 -71912477
13 784301582
14 -9055586513
15 109372026021
16 -1360474322540
17 17016798439534
18 -204454843326736
19 2087851221198112
20 -8301034938962891
21 -481380640245823637