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A289948 as a simple table

na(n)
01
12
210
3226
414050
51742050
6374990050
7128399054050
865676719822050
947850402559694050
1047832576242431694050
1163649302669112063694050
12109966989623147836159694050
13241567605673714904675071694050
14662801328154821495670649599694050
152236801993181528581580834681599694050

[1,2,10,226,14050,1742050,374990050,128399054050,
 65676719822050,47850402559694050,
 47832576242431694050,63649302669112063694050,
 109966989623147836159694050,
 241567605673714904675071694050,
 662801328154821495670649599694050,
 2236801993181528581580834681599694050]