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A003513 as a simple table

na(n)
21
32
46
527
6192
72280
847097
91735803
10115867758
1114137353466
123172486137982
131315460211433262
141011773137731861712
151448486351628212391462
163872217739919424676743213

[1,2,6,27,192,2280,47097,1735803,115867758,
 14137353466,3172486137982,1315460211433262,
 1011773137731861712,1448486351628212391462,
 3872217739919424676743213]