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A233817 Number of (n+1)X(7+1) 0..5 arrays with every 2X2 subblock having the sum of the squares of all six edge and diagonal differences equal to 11 1
667200, 8669484, 100402408, 1586833704, 20442834720, 376273555864, 5136685499560, 109861005202268, 1552605841631744, 38143729537606948, 548802964953591032, 15068815959103418508, 218410350957390297296 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A233818

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..24

EXAMPLE

Some solutions for n=1

..1..2..3..5..5..5..3..2....2..0..2..1..2..3..5..5....0..1..1..2..3..2..3..2

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

CROSSREFS

Sequence in context: A069373 A270801 A162840 * A204887 A251503 A084977

Adjacent sequences:  A233814 A233815 A233816 * A233818 A233819 A233820

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 16 2013

STATUS

approved

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Last modified April 12 10:06 EDT 2021. Contains 342920 sequences. (Running on oeis4.)