# A009785 (b-file synthesized from sequence entry)
0 0
1 1
2 1
3 0
4 -12
5 -45
6 -65
7 1400
8 12096
9 52269
10 -469307
11 -8565656
12 -73323052
13 223125903
14 11882866931
15 176275489312
16 328262199968
17 -26579607201031
18 -672646430878551
19 -4665154122148880
20 76898559105113236
21 3784100596619704043