# A335577 (b-file synthesized from sequence entry)
0 1
1 -1
2 -2
3 9
4 32
5 -285
6 -1236
7 18725
8 86176
9 -2087001
10 -9204580
11 351964569
12 1336442304
13 -83422970917
14 -231889447076
15 26389118293005
16 35917342192064
17 -10722110983670193
18 5028963509133756
19 5432569724760331841
20 -14852185163192897120
21 -3352369390318855889661