# A009450 (b-file synthesized from sequence entry)
0 0
1 1
2 -1
3 0
4 4
5 -19
6 74
7 -290
8 1184
9 -5059
10 22124
11 -93580
12 320464
13 36401
14 -19721976
15 335907130
16 -4599046656
17 59558294361
18 -766372344976
19 10001627076840
20 -133693424522176
21 1839667828548821
22 -26126020673633376