# A047687 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 0
4 -1
5 -1
6 -1
7 1
8 31
9 1
10 -2951
11 -1
12 181
13 2417
14 58913
15 -5699
16 -52635599
17 -19993
18 1126610929
19 3631
20 27069353
21 -6050353
22 -118802490419
23 47438
24 11162375477471
25 41478716501
26 -8529964147714967
27 -3818348299
28 -2610006147952249
29 36698180928319