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A158448 as a simple table

na(n)
11
22
33
48
518
650
7135
8385
91065
103053
118701
1225579
1373693
14217718
15635220
161888802

[1,2,3,8,18,50,135,385,1065,3053,8701,25579,73693,
 217718,635220,1888802]