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A131203 as a simple table

na(n)
01
11
23
39
428
593
6315
71091
83855
913797
1049929
11182361
12671088
132485504
149256395
1534636833
16130150493
17490853403
181857283155
197048151355
2026817356775
21102280151421
22390937467284
231497207322929
245744387279808
2522076468760335

[1,1,3,9,28,93,315,1091,3855,13797,49929,182361,
 671088,2485504,9256395,34636833,130150493,
 490853403,1857283155,7048151355,26817356775,
 102280151421,390937467284,1497207322929,
 5744387279808,22076468760335]