login

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”).

A264188 as a simple table

na(n)
164
26656
3705600
457950000
55479256484
6499844745900
745243595984896
84139503087656960
9376732468150329600
1034302611796922400568
113124653926801074632441
12284425726642352554363569

[64,6656,705600,57950000,5479256484,499844745900,
 45243595984896,4139503087656960,
 376732468150329600,34302611796922400568,
 3124653926801074632441,284425726642352554363569]