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A372747 as a simple table

na(n)
00
11
21
34
428
5270
63185
742830
8636250
910765885
10227860725
116003043950
12152451368175
132205648850800
141614364541325
156690753945813375
16787760273195291625
17-6787610390670062625
18-7103289749314032719250
19-59946385622086525694250
20117473730537013548978420000

[0,1,1,4,28,270,3185,42830,636250,10765885,
 227860725,6003043950,152451368175,2205648850800,
 1614364541325,6690753945813375,787760273195291625,
 -6787610390670062625,-7103289749314032719250,
 -59946385622086525694250,
 117473730537013548978420000]