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A321737 as a simple table

na(n)
01
11
23
39
437
5152
6780
73965
823460
9141471
10944217
116445643
1248075092
13364921557
142974423953
1524847873439
16219611194148
171987556951714
1818930298888792
19184244039718755
201874490999743203
2119510832177784098
22210941659716920257
232331530519337226199
2426692555830628617358

[1,1,3,9,37,152,780,3965,23460,141471,944217,
 6445643,48075092,364921557,2974423953,24847873439,
 219611194148,1987556951714,18930298888792,
 184244039718755,1874490999743203,
 19510832177784098,210941659716920257,
 2331530519337226199,26692555830628617358]