# A013398 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 -1
4 0
5 -7
6 10
7 -47
8 392
9 2809
10 11814
11 506893
12 -403612
13 83115485
14 -231855494
15 16349094305
16 -65488668048
17 3986249084945
18 -19019872358258
19 1200454846441429
20 -6285428416936228
21 441567328473394021