login
The OEIS is supported by the many generous donors to the OEIS Foundation.

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”).

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)

A277274 as a simple table

na(n)
11
22
31162
41692934
53851999
6274422823
714543645261
8492230729674
9773046873382
1013010754158393
1131446154470014
12583396812890467
13598371102650063

[1,2,1162,1692934,3851999,274422823,14543645261,
 492230729674,773046873382,13010754158393,
 31446154470014,583396812890467,598371102650063]

Lookup Welcome Wiki Register Music Plot 2 Demos Index WebCam Contribute Format Style Sheet Transforms Superseeker Recents
The OEIS Community
Maintained by The OEIS Foundation Inc.
Last modified January 5 12:35 EST 2025. Contains 379562 sequences.
License Agreements, Terms of Use, Privacy Policy