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!)

A266181 as a simple table

na(n)
11
211311
31032327
41210565
511121217
6101033565
7111214177
8113411719
9121254557
10123254387
1110333633323
1212105652565
1311121314781937

[1,11311,1032327,1210565,11121217,101033565,
 111214177,113411719,121254557,123254387,
 10333633323,12105652565,11121314781937]

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 09:41 EST 2025. Contains 379536 sequences.
License Agreements, Terms of Use, Privacy Policy