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A005201 as a simple table

na(n)
11
20
31
41
55
610
731
872
9201
10509
111374
123587
139647
1425686
1569348
16187052
17508480
181384959
193791466
2010407842
2128677319
2279231664
23219557624
24609922977
251698526750
264740469708
2713258136509
2837151664771
29104294992317
30293279485007

[1,0,1,1,5,10,31,72,201,509,1374,3587,9647,25686,
 69348,187052,508480,1384959,3791466,10407842,
 28677319,79231664,219557624,609922977,1698526750,
 4740469708,13258136509,37151664771,104294992317,
 293279485007]