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Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A209341 as a simple table

na(n)
11
26
317
4128
5883
67358
762853
8563109
95153746
1048127107
11456011561
124374662802
1342398844001

[1,6,17,128,883,7358,62853,563109,5153746,
 48127107,456011561,4374662802,42398844001]