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A065956 as a simple table

na(n)
01
11
22
33
45
59
615
727
848
987
10160
11296
12552
131033
141941
153663
166936
1713171
1825076
1947854
2091515
21175352
22336587
23647132
241246070
252402691
264638909
278967212
2817353538
2933618333
3065191863
31126535914
32245818071
33477938270
34929968029
351810857391
363528610690
376880357956

[1,1,2,3,5,9,15,27,48,87,160,296,552,1033,1941,
 3663,6936,13171,25076,47854,91515,175352,336587,
 647132,1246070,2402691,4638909,8967212,17353538,
 33618333,65191863,126535914,245818071,477938270,
 929968029,1810857391,3528610690,6880357956]