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A109110 as a simple table

na(n)
04
19
220
345
4101
5227
6510
71146
82575
95786
1013001
1129213
1265641
13147494
14331416
15744685
161673292
173759853
188448313
1918983187
2042654834
2195844542
22215360731
23483911170
241087338529
252443227497
265489882353
2712335653674
2827717962204

[4,9,20,45,101,227,510,1146,2575,5786,13001,29213,
 65641,147494,331416,744685,1673292,3759853,
 8448313,18983187,42654834,95844542,215360731,
 483911170,1087338529,2443227497,5489882353,
 12335653674,27717962204]