# A006569 (b-file synthesized from sequence entry)
0 1
1 -1
2 1
3 1
4 -1
5 -5
6 -1
7 7
8 13
9 -307
10 -479
11 1837
12 100921
13 15587
14 -23737
15 -5729723
16 14731223
17 9129833
18 2722952839
19 -4700745901
20 -1556262845
21 190717213397
22 24684889339847
23 -50242799489
24 -148437433077277
25 -8592042383621
26 221844330989749
27 176585172615885307
28 -9245931549625447