# A009402 (b-file synthesized from sequence entry)
0 0
1 1
2 -3
3 9
4 -42
5 285
6 -2358
7 23079
8 -264792
9 3479625
10 -51399978
11 843354699
12 -15223184892
13 299785177965
14 -6395410234398
15 146929245609519
16 -3616700960240592
17 94961188049020305
18 -2649161419533345618