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A339295 as a simple table

na(n)
11
20
31
42
54
610
725
869
9197
10589
111806
125685
1318168
1458905
15192904
16637294
172119994
187094961
1923865782
2080642017
21273571625
22931389949
233181184007
2410897272983
2537429033777
26128874546753
27444744161951
281538030244174
295329246656885
3018499283612755

[1,0,1,2,4,10,25,69,197,589,1806,5685,18168,58905,
 192904,637294,2119994,7094961,23865782,80642017,
 273571625,931389949,3181184007,10897272983,
 37429033777,128874546753,444744161951,
 1538030244174,5329246656885,18499283612755]