# A109957 (b-file synthesized from sequence entry)
0 1
1 -1
2 4
3 -16
4 74
5 -368
6 1926
7 -10455
8 58333
9 -332489
10 1927761
11 -11334128
12 67416570
13 -404956315
14 2453012916
15 -14967587873
16 91910798556
17 -567566697627
18 3522334450512
19 -21957276973619
20 137425078658354
21 -863229921626723
22 5440215989173113
23 -34388244134246836