# A372747 (b-file synthesized from sequence entry)
0 0
1 1
2 1
3 4
4 28
5 270
6 3185
7 42830
8 636250
9 10765885
10 227860725
11 6003043950
12 152451368175
13 2205648850800
14 1614364541325
15 6690753945813375
16 787760273195291625
17 -6787610390670062625
18 -7103289749314032719250
19 -59946385622086525694250
20 117473730537013548978420000