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A184228 Half the number of (n+1)X7 0..3 arrays with every 2X2 subblock diagonal sum differing from its antidiagonal sum by more than 3 1
6966, 541936, 22904858, 1292899174, 64280495958, 3390680573862, 174220807520698, 9060575120369248, 468666562795511632, 24302116797857458570, 1258755953102506894388, 65231670365062829035438 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A184231

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..200

EXAMPLE

Some solutions for 3X7

..0..2..0..1..0..3..0....2..0..1..0..2..0..3....0..2..0..2..0..3..0

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

..1..3..1..3..0..3..2....2..0..2..0..3..0..2....0..3..1..3..0..3..0

CROSSREFS

Sequence in context: A028542 A263287 A234111 * A050225 A305718 A237237

Adjacent sequences:  A184225 A184226 A184227 * A184229 A184230 A184231

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 10 2011

STATUS

approved

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Last modified January 23 01:15 EST 2020. Contains 331166 sequences. (Running on oeis4.)