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A300041 as a simple table

na(n)
01
11
22
33
47
520
663
7215
8783
92998
1011977
1149656
12212738
13938836
144257792
1519808597
1694405713
17460412410
182295740045
1911695447378
2060837384509
21322968172763
221748975296265
239657311996480
2454350006350292
25311630231535041
261819713622889812
2710817233370816701
2865434087495967354
29402615569685977397
302518832660928798529
3116016013141937173805

[1,1,2,3,7,20,63,215,783,2998,11977,49656,212738,
 938836,4257792,19808597,94405713,460412410,
 2295740045,11695447378,60837384509,322968172763,
 1748975296265,9657311996480,54350006350292,
 311630231535041,1819713622889812,
 10817233370816701,65434087495967354,
 402615569685977397,2518832660928798529,
 16016013141937173805]