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A090595 as a simple table

na(n)
01
13
29
331
4126
5606
63428
722572
8170856
91467432
1014123808
11150644448
121763377344
1322466496960
14309371685120
154577183527680
1672390548206080
171218507923427840
1821746087150745600
19410094720409651200

[1,3,9,31,126,606,3428,22572,170856,1467432,
 14123808,150644448,1763377344,22466496960,
 309371685120,4577183527680,72390548206080,
 1218507923427840,21746087150745600,
 410094720409651200]