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A215514 as a simple table

na(n)
01
10
20
33
40
5-10
690
7112
8-1680
95112
1052920
11-328504
12-1255320
1323508784
1414510496
15-1763573160
164091068800
17159016114496
18-879390741312
19-16959317684096
20164322768835200
212137075591340928
22-32790836323453824
23-310912999830134272
247354887176447775360

[1,0,0,3,0,-10,90,112,-1680,5112,52920,-328504,
 -1255320,23508784,14510496,-1763573160,4091068800,
 159016114496,-879390741312,-16959317684096,
 164322768835200,2137075591340928,
 -32790836323453824,-310912999830134272,
 7354887176447775360]