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A165328 as a simple table

na(n)
11
21
33
412
548
6197
7903
84298
920862
10103049
11518859
122647296
1313651092
1471039373
15372693519
161968822294
1710463661690
1855909013009
19300159426963
201618362990804
218759313066840
2247574827600981
23259215937709463

[1,1,3,12,48,197,903,4298,20862,103049,518859,
 2647296,13651092,71039373,372693519,1968822294,
 10463661690,55909013009,300159426963,
 1618362990804,8759313066840,47574827600981,
 259215937709463]