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A133941 as a simple table

na(n)
00
11
22
39
472
5825
612192
7220353
84708480
9116116497
103245839360
11101415497689
123502465714176
13132486192976137
145447446920323072
15241907419042038225
1611538444129924055040
17588321821566662253729
1831932991994214557417472

[0,1,2,9,72,825,12192,220353,4708480,116116497,
 3245839360,101415497689,3502465714176,
 132486192976137,5447446920323072,
 241907419042038225,11538444129924055040,
 588321821566662253729,31932991994214557417472]