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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”).

A300202 as a simple table

na(n)
11
28
3248
429561
513548425
623883950854
7161892308617170
84219465347519739696
9422854606293602673217071
10162939915121835846953153617510

[1,8,248,29561,13548425,23883950854,
 161892308617170,4219465347519739696,
 422854606293602673217071,
 162939915121835846953153617510]