# A013256 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 0
4 3
5 -40
6 250
7 -840
8 5145
9 -117360
10 1667700
11 -15263600
12 150117275
13 -2670166200
14 50627578950
15 -785508087000
16 12133753256625
17 -237020801836000
18 5185811491549000
19 -108420617788236000