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A281712 as a simple table

na(n)
13
229
390
4294
5937
63166
710738
837285
9129586
10452042
111578499
125515546
1319279612
1467403955
15235679364
16824104430
172881741245
1810077105830
1935238715476
20123227200603
21430917662802
221506893871278
235269524537393
2418427245321410

[3,29,90,294,937,3166,10738,37285,129586,452042,
 1578499,5515546,19279612,67403955,235679364,
 824104430,2881741245,10077105830,35238715476,
 123227200603,430917662802,1506893871278,
 5269524537393,18427245321410]