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A245928 as a simple table

na(n)
01
11
20
32
40
55
60
712
80
920
100
11-30
120
13-546
140
15-3672
160
17-18796
180
19-79640
200
21-270955
220
23-584340
240
25903396
260
2720471948
280
29155046180
300
31872787888
320
334012121412
340
3514728928136
360
3734982326212
380
39-40695186320
400
41-1194336566976
420
43-9612277504606
440
45-56604770338290
460

[1,1,0,2,0,5,0,12,0,20,0,-30,0,-546,0,-3672,0,
 -18796,0,-79640,0,-270955,0,-584340,0,903396,0,
 20471948,0,155046180,0,872787888,0,4012121412,0,
 14728928136,0,34982326212,0,-40695186320,0,
 -1194336566976,0,-9612277504606,0,-56604770338290,
 0]