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A182927 as a simple table

na(n)
11
20
33
4-8
525
6-99
7721
8-5704
940881
10-340325
113628801
12-41245511
13479001601
14-6129725315
1587212177053
16-1317906346184
1720922789888001
18-354320889234597
196402373705728001
20-121882630320799633
212432928081076384321
22-51041048673495232715

[1,0,3,-8,25,-99,721,-5704,40881,-340325,3628801,
 -41245511,479001601,-6129725315,87212177053,
 -1317906346184,20922789888001,-354320889234597,
 6402373705728001,-121882630320799633,
 2432928081076384321,-51041048673495232715]