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A067771 as a simple table

na(n)
03
16
215
342
4123
5366
61095
73282
89843
929526
1088575
11265722
12797163
132391486
147174455
1521523362
1664570083
17193710246
18581130735
191743392202
205230176603
2115690529806
2247071589415
23141214768242
24423644304723
251270932914166

[3,6,15,42,123,366,1095,3282,9843,29526,88575,
 265722,797163,2391486,7174455,21523362,64570083,
 193710246,581130735,1743392202,5230176603,
 15690529806,47071589415,141214768242,423644304723,
 1270932914166]