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A274975 as a simple table

na(n)
03
12
26
311
426
557
6129
7289
8650
91460
103281
117372
1216565
1337221
1483635
15187926
16422266
17948823
182131986
194790529
2010764221
2124186985
2254347662
23122118088
24274396853
25616564132
261385407029
273112981337
286994805571
2915717185450
3035316195134
3179354770147
32178308549978

[3,2,6,11,26,57,129,289,650,1460,3281,7372,16565,
 37221,83635,187926,422266,948823,2131986,4790529,
 10764221,24186985,54347662,122118088,274396853,
 616564132,1385407029,3112981337,6994805571,
 15717185450,35316195134,79354770147,178308549978]