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A349591 as a simple table

na(n)
01
13
216
3160
42216
535110
6596016
710573748
8193586424
93629709697
1069342483276
111344897261828
1226411276859800
13524117511080056
1410493756451964088
15211719733855698808
164300202981875132408
1787854045612854431128
181804215079309443709632

[1,3,16,160,2216,35110,596016,10573748,193586424,
 3629709697,69342483276,1344897261828,
 26411276859800,524117511080056,10493756451964088,
 211719733855698808,4300202981875132408,
 87854045612854431128,1804215079309443709632]