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A000450 as a simple table

na(n)
41
510
650
7385
83130
928764
10291900
113249210
1239367395
13515874470
147270929806
15109691447395
161763782644020
1730114243100760
18544123405603800
1910373304279494964
20208092476689208805
214381794437494059810
2296635643877147885450
232227562535558247510885

[1,10,50,385,3130,28764,291900,3249210,39367395,
 515874470,7270929806,109691447395,1763782644020,
 30114243100760,544123405603800,10373304279494964,
 208092476689208805,4381794437494059810,
 96635643877147885450,2227562535558247510885]