# A012787 (b-file synthesized from sequence entry)
0 1
1 -1
2 -15
3 -345
4 -11263
5 -455025
6 -16466703
7 746021367
8 480286325633
9 150637957014303
10 46203820378253425
11 15313454320801213511
12 5643895146092962507905
13 2333857400234709586763695