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A105750 as a simple table

na(n)
01
11
2-1
3-10
4-10
5190
6730
7-6620
8-55900
9365300
105864300
11-28269800
12-839594600
132691559000
14159300557000
15-238131478000
16-38894192662000
17-15194495654000
1811911522255750000
1929697351895900000
20-4477959179352100000
21-21683886333440500000
222029107997508660900000

[1,1,-1,-10,-10,190,730,-6620,-55900,365300,
 5864300,-28269800,-839594600,2691559000,
 159300557000,-238131478000,-38894192662000,
 -15194495654000,11911522255750000,
 29697351895900000,-4477959179352100000,
 -21683886333440500000,2029107997508660900000]