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A121873 as a simple table

na(n)
11
23
314
480
5510
63479
724848
8183465
91389090
1010726452
1184150858
12668825768
135373971036
1443580383095
15356234802952
162932097981824
1724279982680870
18202134854855973
191690839212784240
2014204198452365180
21119784707913644598
221013675671656956976

[1,3,14,80,510,3479,24848,183465,1389090,10726452,
 84150858,668825768,5373971036,43580383095,
 356234802952,2932097981824,24279982680870,
 202134854855973,1690839212784240,
 14204198452365180,119784707913644598,
 1013675671656956976]