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A027139 as a simple table

na(n)
02
17
223
372
4218
5648
61907
75581
816290
947502
10138521
11404183
121180402
133450899
1410099605
1529589780
1686781374
17254761882
18748580729
192201465799
206479301022
2119083705249
2256246157177
23165881453558
24489506759446

[2,7,23,72,218,648,1907,5581,16290,47502,138521,
 404183,1180402,3450899,10099605,29589780,86781374,
 254761882,748580729,2201465799,6479301022,
 19083705249,56246157177,165881453558,489506759446]