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A246829 as a simple table

na(n)
11
21
32
43
57
616
745
8111
9318
10881
112686
128033
1325470
1480480
15263977
16862865
172891344
189706757
1933178076
20113784968
21395303480
221379160685
234859274472
2417195407935
2561310096228
26219520467207
27790749207801
282859542098634
2910391610220375
3037897965144166

[1,1,2,3,7,16,45,111,318,881,2686,8033,25470,
 80480,263977,862865,2891344,9706757,33178076,
 113784968,395303480,1379160685,4859274472,
 17195407935,61310096228,219520467207,790749207801,
 2859542098634,10391610220375,37897965144166]