# A013226 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 0
4 -3
5 10
6 -100
7 525
8 -5355
9 37980
10 -440550
11 3927275
12 -52278875
13 560837550
14 -8500662300
15 106552684875
16 -1819369836375
17 26079977287000
18 -496530064488250
19 8007335798362875
20 -168440275093179375