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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”).

A219099 as a simple table

na(n)
11
211
3288
426145
58647530
610432278539

[1,11,288,26145,8647530,10432278539]