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A042466 as a simple table

na(n)
027
128
255
3138
4331
5469
6800
743669
844469
988138
10220745
11529628
12750373
131280001
1469870427
1571150428
16141020855
17353192138
18847405131
191200597269
202048002400
21111792726869
22113840729269
23225633456138
24565107641545
251355848739228
261920956380773

[27,28,55,138,331,469,800,43669,44469,88138,
 220745,529628,750373,1280001,69870427,71150428,
 141020855,353192138,847405131,1200597269,
 2048002400,111792726869,113840729269,225633456138,
 565107641545,1355848739228,1920956380773]