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A126569 as a simple table

na(n)
01
12
25
314
442
5132
6430
71444
84981
917594
1063442
11232828
12867146
133269060
1412446684
1547771496
16184544427
17716658870
182794956099
1910938266562
2042930256917
21168890693650
22665739119129
232628578437646
2410393091551794
2541141896235012
26163028816478833

[1,2,5,14,42,132,430,1444,4981,17594,63442,232828,
 867146,3269060,12446684,47771496,184544427,
 716658870,2794956099,10938266562,42930256917,
 168890693650,665739119129,2628578437646,
 10393091551794,41141896235012,163028816478833]