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A253833 as a simple table

na(n)
1512
26339
352014
4284109
5156876
6295098
7262418
8218499
9347440
10571191
11845552
121524398
132858410
145021094
159662090
1618996817
1736633058
1872806768
19145731460
20290387182
21583234472
221173787454
232359763404
244752830758
259577047474

[512,6339,52014,284109,156876,295098,262418,
 218499,347440,571191,845552,1524398,2858410,
 5021094,9662090,18996817,36633058,72806768,
 145731460,290387182,583234472,1173787454,
 2359763404,4752830758,9577047474]