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A239605 as a simple table

na(n)
11
21
32
44
510
624
766
8178
9508
101464
114320
1212886
1338992
14119030
15366740
161138036
173554962
1811167292
1935259290
20111825840
21356100044
221138107490
233649507278
2411738028470
2537857909164
26122411024822

[1,1,2,4,10,24,66,178,508,1464,4320,12886,38992,
 119030,366740,1138036,3554962,11167292,35259290,
 111825840,356100044,1138107490,3649507278,
 11738028470,37857909164,122411024822]