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A003510 as a simple table

na(n)
01
11
22
35
417
567
6352
71969
813295
997619
10848354
117647499
1282862683
13897904165
1411226063188
15146116260203
162089038231953
1730230018309161
18508450431515290
198318618236423861
20154636109939564681
212896102013935844771
2259056861862689101272

[1,1,2,5,17,67,352,1969,13295,97619,848354,
 7647499,82862683,897904165,11226063188,
 146116260203,2089038231953,30230018309161,
 508450431515290,8318618236423861,
 154636109939564681,2896102013935844771,
 59056861862689101272]