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A231531 as a simple table

na(n)
00
11
23
310
440
5190
61050
76620
846800
9365300
103103100
1128269800
12271627200
132691559000
1426495469000
15238131478000
161394099824000
17-15194495654000
18-936096296850000
19-29697351895900000
20-819329864480400000
21-21683886333440500000
22-570263312237604700000
23-15145164178973569000000
24-409583160925827252000000

[0,1,3,10,40,190,1050,6620,46800,365300,3103100,
 28269800,271627200,2691559000,26495469000,
 238131478000,1394099824000,-15194495654000,
 -936096296850000,-29697351895900000,
 -819329864480400000,-21683886333440500000,
 -570263312237604700000,-15145164178973569000000,
 -409583160925827252000000]