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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”).

A025282 as a simple table

na(n)
11
24
312
451
5373
67724
7370555
827284157
92075178956

[1,4,12,51,373,7724,370555,27284157,2075178956]