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A000800 as a simple table

na(n)
01
11
21
32
45
513
638
7125
8449
91742
107269
1132433
12153850
13772397
144088773
1522746858
16132601933
17807880821
185132235182
1933925263901
20232905588441
211657807491222
2212215424018837
2393042845392105
24731622663432978
255931915237693517
2649535826242154973

[1,1,1,2,5,13,38,125,449,1742,7269,32433,153850,
 772397,4088773,22746858,132601933,807880821,
 5132235182,33925263901,232905588441,1657807491222,
 12215424018837,93042845392105,731622663432978,
 5931915237693517,49535826242154973]