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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”).

A284276 as a simple table

na(n)
11
24
341
4916
541099
63528258
7561658287

[1,4,41,916,41099,3528258,561658287]