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A209670 as a simple table

na(n)
11
26
348
4547
57301
6120315
72239803
848278809
91153934735
1030834749017
11900390736548
1228782727026031
13993911439932097
1437039780178206877
151477457354215115765
1662950691931099382408
172849385291187650049208
18136701569959985165325989
196924379544998951633495956

[1,6,48,547,7301,120315,2239803,48278809,
 1153934735,30834749017,900390736548,
 28782727026031,993911439932097,37039780178206877,
 1477457354215115765,62950691931099382408,
 2849385291187650049208,136701569959985165325989,
 6924379544998951633495956]