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A233916 Number of (n+1)X(7+1) 0..7 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 30, and no two adjacent values equal 1
559736, 28936484, 1317291048, 76393662524, 3816435022128, 224247343748408, 11458028594887856, 672061212550600320, 34642386448309478976, 2024556302397626065444, 104880714157688434998824 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A233917
LINKS
EXAMPLE
Some solutions for n=1
..6..2..0..2..3..2..6..2....6..2..3..6..3..5..3..2....4..1..4..1..4..5..1..5
..4..5..1..5..7..5..4..1....4..5..7..5..7..4..0..4....6..2..0..2..0..3..0..3
CROSSREFS
Sequence in context: A235969 A203659 A184475 * A206194 A250534 A234207
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 17 2013
STATUS
approved

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Last modified March 28 08:22 EDT 2024. Contains 371236 sequences. (Running on oeis4.)