login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A233720 Number of (n+1)X(3+1) 0..7 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 26 1
11016, 101644, 998048, 10950676, 122218188, 1417835712, 16483703564, 194721929436, 2296636990520, 27285817326088, 323545654903716, 3850382758561204, 45752439516588968, 544695951621853076 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A233724

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=2

..5..1..3..6....3..7..7..6....3..3..3..3....2..5..2..3....6..4..1..4

..4..4..1..4....6..6..3..6....4..0..4..0....2..6..6..3....4..1..3..1

..0..1..3..6....7..3..1..4....1..0..1..0....3..3..2..2....6..4..6..3

CROSSREFS

Sequence in context: A267934 A218598 A096930 * A285845 A160711 A129087

Adjacent sequences:  A233717 A233718 A233719 * A233721 A233722 A233723

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 15 2013

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 August 3 12:51 EDT 2021. Contains 346438 sequences. (Running on oeis4.)