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A253735 Number of (n+2)X(3+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal sum minus antidiagonal sum unequal to its neighbors horizontally and vertically 1
2212, 4100, 7216, 17608, 44332, 102616, 243796, 599920, 1495128, 3650772, 8912248, 21950456, 54561592, 133987004, 330069048, 813259848, 2014417284, 4957347368, 12243687824, 30160503772, 74615015336, 183748891424, 454096916844 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A253740

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4

..0..0..0..0..0....1..1..0..1..1....0..1..0..0..1....1..1..1..0..0

..0..1..0..1..1....1..0..1..1..1....0..0..0..0..0....0..1..1..1..0

..1..1..1..0..1....0..1..1..1..0....1..1..0..1..1....1..0..1..1..1

..0..1..1..1..0....1..0..1..0..1....0..1..0..0..1....1..1..0..1..1

..1..0..1..0..1....0..0..0..1..1....1..1..1..1..1....1..0..1..0..1

..0..1..0..1..0....0..0..1..0..0....1..1..0..1..1....1..1..1..1..0

CROSSREFS

Sequence in context: A238456 A031725 A077693 * A259892 A337160 A138079

Adjacent sequences:  A253732 A253733 A253734 * A253736 A253737 A253738

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 11 2015

STATUS

approved

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Last modified October 21 01:06 EDT 2021. Contains 348120 sequences. (Running on oeis4.)