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A003698 as a simple table

na(n)
11
29
353
4341
52169
613825
788093
8561357
93577121
1022794425
11145252485
12925589701
135898117961
1437584466929
15239498796653
161526153708861
179725080775409
1861970950592425
19394896331045333
202516390514947637

[1,9,53,341,2169,13825,88093,561357,3577121,
 22794425,145252485,925589701,5898117961,
 37584466929,239498796653,1526153708861,
 9725080775409,61970950592425,394896331045333,
 2516390514947637]