# A215639 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 -4
4 -51
5 -304
6 125
7 34880
8 557753
9 3416320
10 -74779911
11 -2917151744
12 -46015368443
13 115191402496
14 30429734385973
15 942941062774784
16 9925460231059185
17 -471696770041053184
18 -29508689065235461903
19 -733077456673636089856
20 4714209123766494329021