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A194476 as a simple table

na(n)
10
20
36
4114
5879
64284
715729
847565
9124803
10293733
11634293
121277133
132426424
144389567
157615062
1612739902
1720647962
1832540958
1950023656
2075205116
21110817861
22160356966
23228241167
24319998195
25442476645
26604086795
27815072895
281087819551

[0,0,6,114,879,4284,15729,47565,124803,293733,
 634293,1277133,2426424,4389567,7615062,12739902,
 20647962,32540958,50023656,75205116,110817861,
 160356966,228241167,319998195,442476645,604086795,
 815072895,1087819551]