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A138294 as a simple table

na(n)
01
11
24
316
478
5420
62454
715297
8100660
9694022
104986128
1137171749
12286619290
132279866324
1418668221560
15157080129914
161356186583276
1711999018622158
18108672944038356
191006528378511868
209525454067974148
2192037443236217412

[1,1,4,16,78,420,2454,15297,100660,694022,4986128,
 37171749,286619290,2279866324,18668221560,
 157080129914,1356186583276,11999018622158,
 108672944038356,1006528378511868,9525454067974148,
 92037443236217412]