The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A027148 a(n) = A027144(2n-1, n-1). 0
1, 6, 20, 152, 528, 4416, 15488, 135552, 477440, 4289536, 15144960, 138407936, 489431040, 4526702592, 16024403968, 149528084480, 529747476480, 4977103994880, 17643662213120, 166668216041472, 591119702294528, 5608619676532736 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
CROSSREFS
Sequence in context: A000387 A145221 A332391 * A095854 A027268 A000388
KEYWORD
nonn
AUTHOR
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 28 11:56 EDT 2024. Contains 372913 sequences. (Running on oeis4.)