# A108931 (b-file synthesized from sequence entry)
0 0
1 1
2 -3
3 8
4 -18
5 47
6 -105
7 274
8 -612
9 1597
10 -3567
11 9308
12 -20790
13 54251
14 -121173
15 316198
16 -706248
17 1842937
18 -4116315
19 10741424
20 -23991642
21 62605607
22 -139833537
23 364892218
24 -815009580
25 2126747701
26 -4750223943
27 12395593988
28 -27686334078
29 72246816227