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A205281 as a simple table

na(n)
1256
23516
33184
449342
5131918
639419
7687900
85557912
94826836
10484930
119599032
12233119498
13605359630
14175224700
155968388
16133932498
179769758666
1875356390650
1965106769738
206371258488
2173466056
221868731400
23409681200668
249373958322702

[256,3516,3184,49342,131918,39419,687900,5557912,
 4826836,484930,9599032,233119498,605359630,
 175224700,5968388,133932498,9769758666,
 75356390650,65106769738,6371258488,73466056,
 1868731400,409681200668,9373958322702]