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A163697 as a simple table

na(n)
14
221
380
4259
5775
62223
76336
817796
948912
10131828
11350506
12923197
132413779
146272766
1516221462
1641787691
17107324054
18274986699
19703245913
201795790220
214580304063
2211671650321
2329720454413

[4,21,80,259,775,2223,6336,17796,48912,131828,
 350506,923197,2413779,6272766,16221462,41787691,
 107324054,274986699,703245913,1795790220,
 4580304063,11671650321,29720454413]