# A009778 (b-file synthesized from sequence entry)
0 0
1 1
2 1
3 0
4 4
5 -5
6 -9
7 196
8 -1280
9 4509
10 12565
11 -386144
12 3804516
13 -19339385
14 -75459461
15 3162527460
16 -41545303904
17 276166431961
18 1385435722185
19 -73547738586656
20 1207721984518180
21 -9917136571683789
22 -60806773846655969