# A009457 (b-file synthesized from sequence entry)
0 0
1 1
2 1
3 1
4 2
5 -5
6 41
7 -289
8 2316
9 -20383
10 196965
11 -2077319
12 23780646
13 -293954869
14 3904755557
15 -55497739465
16 840656150296
17 -13523247084319
18 230285930161321
19 -4139153666264303
20 78317988438360330