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A320185 as a simple table

na(n)
01
11
23
39
433
5135
6633
73207
817589
9102626
10636014
114160852
1228676800
13207267046
141566709436
1512337438198
16100921477976
17855109095248
187488671736398
1967655656640892
20629623562927598
216027970886933100
2259306595225701588
23599011729235408510
246205282969563030610

[1,1,3,9,33,135,633,3207,17589,102626,636014,
 4160852,28676800,207267046,1566709436,12337438198,
 100921477976,855109095248,7488671736398,
 67655656640892,629623562927598,6027970886933100,
 59306595225701588,599011729235408510,
 6205282969563030610]