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A055497 as a simple table

na(n)
-14
05
18
240
3904
444104
55336104
6901800904
7260620460104
894083986096104
949770428644836904
1041856930490307832904
1140224510201185827416904
1255067354465423397733736104
1392568222856376731590410384104

[4,5,8,40,904,44104,5336104,901800904,
 260620460104,94083986096104,49770428644836904,
 41856930490307832904,40224510201185827416904,
 55067354465423397733736104,
 92568222856376731590410384104]