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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A026628 T(2n,n-1), T given by A026626. 0
1, 6, 21, 79, 296, 1117, 4237, 16147, 61782, 237208, 913466, 3526826, 13647886, 52920075, 205566205, 799791235, 3116196550, 12157265980, 47485135510, 185671296850, 726703966600, 2846827216330, 11161555459090, 43794648931054 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..24.

CROSSREFS

Sequence in context: A054625 A192733 A192144 * A053768 A255719 A134927

Adjacent sequences:  A026625 A026626 A026627 * A026629 A026630 A026631

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 August 22 03:07 EDT 2017. Contains 290942 sequences.