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A308435 as a simple table

na(n)
01
12
24
39
420
545
6102
7233
8535
91234
102857
116636
1215456
1336085
1484424
15197883
16464585
171092348
182571770
196062109
2014305022
2133789777
2279887365
23189031914
24447639473
251060798484
262515512091
275968826698
2814171068794
2933662866431
3080005478832
31190237068767
32452548530595

[1,2,4,9,20,45,102,233,535,1234,2857,6636,15456,
 36085,84424,197883,464585,1092348,2571770,6062109,
 14305022,33789777,79887365,189031914,447639473,
 1060798484,2515512091,5968826698,14171068794,
 33662866431,80005478832,190237068767,452548530595]