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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A026666 T(n,0) + T(n,1) + ... + T(n,n), T given by A026659. 0
1, 2, 4, 10, 20, 42, 84, 196, 392, 842, 1684, 3878, 7756, 16786, 33572, 76846, 153692, 333998, 667996, 1523448, 3046896, 6639150, 13278300, 30206468, 60412936, 131892226, 263784452, 598952096, 1197904192, 2619074230 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..29.

CROSSREFS

Sequence in context: A167030 A026644 A167193 * A325508 A238439 A121880

Adjacent sequences:  A026663 A026664 A026665 * A026667 A026668 A026669

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
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 17 06:41 EDT 2019. Contains 327119 sequences. (Running on oeis4.)