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A261372 as a simple table

na(n)
136
241
3202
41040
55633
642302
7461576
85441268
987288274
101757770516
1147269754142
121497418790742
1365202132975489
143410709440318090
15240487233522340499
1620318813275802198468
172337266627779577763890

[36,41,202,1040,5633,42302,461576,5441268,
 87288274,1757770516,47269754142,1497418790742,
 65202132975489,3410709440318090,
 240487233522340499,20318813275802198468,
 2337266627779577763890]