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”).

A254427 as a simple table

na(n)
1192393
220251190
31701224592
4176730239629
516692762023274
61673449182032706
7164134852428558128
816367112523891074046
91625256311482017610530
10162161419374475253156492
1116172325068209275469916046

[192393,20251190,1701224592,176730239629,
 16692762023274,1673449182032706,
 164134852428558128,16367112523891074046,
 1625256311482017610530,162161419374475253156492,
 16172325068209275469916046]