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

 

Logo

Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A186856 Number of 7-step knight's tours on a (n+2)X(n+2) board summed over all starting positions 0
16, 1280, 21664, 118480, 372384, 847520, 1584576, 2596480, 3879696, 5424848 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A186851

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for 5X5

..0..1..0..0..0....2..0..0..0..0....0..0..0..1..0....2..0..0..0..0

..0..0..0..0..0....0..0..3..0..0....3..6..0..0..0....0..0..1..0..0

..0..5..2..0..0....0..1..6..0..0....0..0..2..5..0....0..3..6..0..0

..7..0..0..4..0....0..4..0..0..0....0..4..7..0..0....0..0..0..4..7

..0..3..6..0..0....0..7..0..5..0....0..0..0..0..0....0..5..0..0..0

CROSSREFS

Sequence in context: A222888 A113104 A227602 * A000490 A027648 A224105

Adjacent sequences:  A186853 A186854 A186855 * A186857 A186858 A186859

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 27 2011

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 December 7 05:39 EST 2016. Contains 278841 sequences.