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!)
A233721 Number of (n+1)X(4+1) 0..7 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 26 1
68828, 820524, 10950676, 170070448, 2734167036, 46522687660, 796715658452, 13995270446204, 245408211398092, 4358775191230524, 77150745635099900, 1375309537380981836, 24439122021669087584, 436122272157881688916 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A233724

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..109

EXAMPLE

Some solutions for n=1

..1..4..1..4..1....5..1..0..1..1....7..6..6..6..4....0..3..0..2..2

..3..6..3..6..4....5..4..0..4..5....7..3..7..3..1....3..5..2..5..6

CROSSREFS

Sequence in context: A249315 A031863 A213702 * A121107 A046516 A199997

Adjacent sequences:  A233718 A233719 A233720 * A233722 A233723 A233724

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 July 30 05:57 EDT 2021. Contains 346349 sequences. (Running on oeis4.)