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A229256 as a simple table

na(n)
10
20
30
40
50
610
7223
8144
9-9998
10-58280
11348134
129517942
1392182430
14404027415
15-2717447318
16-79612186200
17-983858494247
18-7964818545554
19-31776540093807
20289145607666924
218243854930562789
22108476952917770938
23885519807642948390
24715407405727600672
25-147909423143942345447

[0,0,0,0,0,10,223,144,-9998,-58280,348134,9517942,
 92182430,404027415,-2717447318,-79612186200,
 -983858494247,-7964818545554,-31776540093807,
 289145607666924,8243854930562789,
 108476952917770938,885519807642948390,
 715407405727600672,-147909423143942345447]