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A220284 as a simple table

na(n)
14
231
3139
41411
59430
663154
7452515
83130768
921630714
10150540232
111043064746
127226190511
1350094800811
14347052655839
152404198149909
1616655726484462
17115373519626103
18799165840938429
195535587924914620
2038342402997836989

[4,31,139,1411,9430,63154,452515,3130768,21630714,
 150540232,1043064746,7226190511,50094800811,
 347052655839,2404198149909,16655726484462,
 115373519626103,799165840938429,5535587924914620,
 38342402997836989]