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A197403 as a simple table

na(n)
13
29
320
471
5227
6664
72107
86675
920696
1065029
11205057
12643930
132026105
146384135
1520104382
1663329883
17199576691
18628932096
191982100085
206247388117
2119691746204
2262069757373
23195654894641
24616749232724
251944155102539
266128552692107

[3,9,20,71,227,664,2107,6675,20696,65029,205057,
 643930,2026105,6384135,20104382,63329883,
 199576691,628932096,1982100085,6247388117,
 19691746204,62069757373,195654894641,616749232724,
 1944155102539,6128552692107]