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A233723 Number of (n+1)X(6+1) 0..7 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 26 0
2624872, 54865696, 1417835712, 46522687660, 1650535163756, 64234332473960, 2551739071259076, 105766745720453760, 4388114335496330756, 186207934147222139492 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A233724

LINKS

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

EXAMPLE

Some solutions for n=1

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

..0..1..5..6..5..4..6....0..1..3..1..5..1..4....4..3..5..3..3..3..5

CROSSREFS

Sequence in context: A004674 A123155 A251036 * A162026 A229799 A196496

Adjacent sequences:  A233720 A233721 A233722 * A233724 A233725 A233726

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 15 2013

STATUS

approved

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Last modified June 18 03:46 EDT 2021. Contains 345098 sequences. (Running on oeis4.)