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A014281 as a simple table

na(n)
00
11
21
31
41
52
63
74
89
918
1040
1184
12189
13425
14986
152298
165465
1713072
1831661
1977173
20189697
21468969
221166720
232916983
247329321
2518494428
2646859177
27119161865
28304076055
29778399130
301998552928
315145515877
3213282204144
3334368982552
3489136810772

[0,1,1,1,1,2,3,4,9,18,40,84,189,425,986,2298,5465,
 13072,31661,77173,189697,468969,1166720,2916983,
 7329321,18494428,46859177,119161865,304076055,
 778399130,1998552928,5145515877,13282204144,
 34368982552,89136810772]