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A173139 as a simple table

na(n)
01
11
22
34
411
531
697
7309
81026
93466
1011964
1141856
12148373
13531233
141919313
156986745
1625604367
1794379887
18349702606
191301729084
204865680876
2118255350676
2268724316775
23259521249065
24982796892300
253731493081316
2614201727734640

[1,1,2,4,11,31,97,309,1026,3466,11964,41856,
 148373,531233,1919313,6986745,25604367,94379887,
 349702606,1301729084,4865680876,18255350676,
 68724316775,259521249065,982796892300,
 3731493081316,14201727734640]