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”).

A300420 as a simple table

na(n)
10
23
353
42227
5240196
667378450
748707694395
890693182026546
9435112536711313866
105381527099060030118335
11171582103150798864303410622

[0,3,53,2227,240196,67378450,48707694395,
 90693182026546,435112536711313866,
 5381527099060030118335,
 171582103150798864303410622]