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A065954 as a simple table

na(n)
01
11
22
33
45
59
615
726
848
987
10160
11296
12551
131032
141941
153663
166936
1713171
1825076
1947853
2091515
21175351
22336586
23647131
241246070
252402691
264638908
278967212
2817353538
2933618332
3065191863
31126535914
32245818071
33477938270
34929968028
351810857391
363528610690
376880357956

[1,1,2,3,5,9,15,26,48,87,160,296,551,1032,1941,
 3663,6936,13171,25076,47853,91515,175351,336586,
 647131,1246070,2402691,4638908,8967212,17353538,
 33618332,65191863,126535914,245818071,477938270,
 929968028,1810857391,3528610690,6880357956]