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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”).

A267660 as a simple table

na(n)
11
28
3108
43143
580404
65663798
7264709135
846354321490
93947286385526
101938755845909663

[1,8,108,3143,80404,5663798,264709135,46354321490,
 3947286385526,1938755845909663]