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!)

A220876 as a simple table

na(n)
11
24
328
4232
51984
616804
7139012
81119172
98776036
1067190308
11503591332
123703703716
1326779859332
14190652265220
151337960522980
169264356481220

[1,4,28,232,1984,16804,139012,1119172,8776036,
 67190308,503591332,3703703716,26779859332,
 190652265220,1337960522980,9264356481220]

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 December 6 12:51 EST 2024. Contains 378477 sequences.
License Agreements, Terms of Use, Privacy Policy