# A160971 (b-file synthesized from sequence entry)
2 264
3 -480
4 504
5 -240
6 82104
7 0
8 103128
9 1024080
10 4203864
11 1863840
12 5672869224
13 15790320
14 81426730488
15 41356037952960
16 185023705021848
17 3639088741200
18 631566517273421638632
19 3701044943799840
20 6265985243914780011624