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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”).

A356416 as a simple table

na(n)
11
2819
31274
419940
5204323
6149228720
73144583275

[1,819,1274,19940,204323,149228720,3144583275]