# A097086 (b-file synthesized from sequence entry)
0 0
1 1
2 1
3 0
4 1
5 -5
6 9
7 287
8 -4455
9 84249
10 -284515
11 -35428349
12 814639275
13 -3434408341
14 -1338006522699
15 6133774365735
16 413520124707781
17 -45122925184812203
18 -231704968682873565
19 102526632234397695073
20 -2030875572224787003585
21 -76894817276627723872401