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A020087 as a simple table

na(n)
01
10
20
30
42
59
650
7318
82310
919060
10176310
111807181
1220330788
13249052161
143299941145
1547024161317
16717118460090
1711653174976468
18201017268344078
193668565147279423
2070619879085128903
211430052551473860292

[1,0,0,0,2,9,50,318,2310,19060,176310,1807181,
 20330788,249052161,3299941145,47024161317,
 717118460090,11653174976468,201017268344078,
 3668565147279423,70619879085128903,
 1430052551473860292]