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A013360 as a simple table

na(n)
01
10
20
31
40
5-23
610
7719
8-1288
9-40039
10152934
113522539
12-21952084
13-447600515
144051623706
1577667878287
16-956802094896
17-17678180216111
18283850233488142
195114563630418963
20-103778358157367212

[1,0,0,1,0,-23,10,719,-1288,-40039,152934,3522539,
 -21952084,-447600515,4051623706,77667878287,
 -956802094896,-17678180216111,283850233488142,
 5114563630418963,-103778358157367212]