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A078481 as a simple table

na(n)
00
11
21
33
47
519
653
7153
8453
91367
104191
1113015
1240857
13129441
14413337
151328971
164298727
1713978971
1845673981
19149867513
20493638797
211631616239
225410015615
2317990076527
2459981630321
25200476419713
26671564145137
272254338511507
287582179238151
2925547868961315

[0,1,1,3,7,19,53,153,453,1367,4191,13015,40857,
 129441,413337,1328971,4298727,13978971,45673981,
 149867513,493638797,1631616239,5410015615,
 17990076527,59981630321,200476419713,671564145137,
 2254338511507,7582179238151,25547868961315]