login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A026292 a(n) = T(2n,n), where T is the array in A026268. 0
1, 1, 5, 27, 145, 796, 4438, 25034, 142479, 816620, 4706977, 27256963, 158450461, 924129535, 5404960900, 31689099660, 18618338689, 1096001511849, 6462416487070, 38161656273410, 222225653893420214 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..20.

CROSSREFS

Sequence in context: A052225 A293295 A015535 * A100193 A158869 A162557

Adjacent sequences:  A026289 A026290 A026291 * A026293 A026294 A026295

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy .

Last modified April 22 21:39 EDT 2018. Contains 302916 sequences. (Running on oeis4.)