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A058540 as a simple table

na(n)
00
11
23
39
436
5144
6651
73015
814634
972654
10369063
111904985
129971889
1352788393
14282161025
151520597895
168253281871
1745075359277
18247534382298
191365994896264
207571065357620
2142127865408028
22235246997219400
231317894484506336

[0,1,3,9,36,144,651,3015,14634,72654,369063,
 1904985,9971889,52788393,282161025,1520597895,
 8253281871,45075359277,247534382298,1365994896264,
 7571065357620,42127865408028,235246997219400,
 1317894484506336]