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A354076 as a simple table

na(n)
11
21
32
44
510
623
760
8153
9405
101076
112909
127907
1321693
1459834
15166004
16462612
171294612
183635809
1910244017

[1,1,2,4,10,23,60,153,405,1076,2909,7907,21693,
 59834,166004,462612,1294612,3635809,10244017]