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A254984 as a simple table

na(n)
110285
256002
3319420
42120266
513519728
686136256
7562741035
83653027246
923677521060
10153690383705
11998230865006
126479204181625
1342060540310539
14273045520110028
151772515663903131
1611506332454958673
1774695053097055563

[10285,56002,319420,2120266,13519728,86136256,
 562741035,3653027246,23677521060,153690383705,
 998230865006,6479204181625,42060540310539,
 273045520110028,1772515663903131,
 11506332454958673,74695053097055563]