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A291000 as a simple table

na(n)
01
13
29
326
474
5210
6596
71692
84804
913640
1038728
11109960
12312208
13886448
142516880
157146144
1620289952
1757608992
18163568448
19464417728
201318615104
213743926400
2210630080640
2330181847168
2485694918912
25243312448256
26690833811712
271961475291648
285569190816256

[1,3,9,26,74,210,596,1692,4804,13640,38728,109960,
 312208,886448,2516880,7146144,20289952,57608992,
 163568448,464417728,1318615104,3743926400,
 10630080640,30181847168,85694918912,243312448256,
 690833811712,1961475291648,5569190816256]