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A253736 Number of (n+2)X(4+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal sum minus antidiagonal sum unequal to its neighbors horizontally and vertically 1
6932, 9876, 17608, 54688, 143080, 345304, 922004, 2750948, 7532104, 19629020, 54002636, 156395176, 431245644, 1157344788, 3200744100, 9082171160, 25099285504, 68356417780, 189256505056, 530927271980, 1468646504672 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A253740

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

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

CROSSREFS

Sequence in context: A253612 A004243 A004244 * A004245 A195280 A059462

Adjacent sequences:  A253733 A253734 A253735 * A253737 A253738 A253739

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 11 2015

STATUS

approved

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Last modified October 20 21:31 EDT 2021. Contains 348119 sequences. (Running on oeis4.)