# A134831 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 0
4 12
5 -26
6 312
7 -1338
8 16684
9 -104994
10 1463904
11 -12138218
12 190104132
13 -1956240066
14 34206491416
15 -420374124426
16 8140714373532
17 -116318340148898
18 2474986205007504
19 -40312051604277354