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A253738 Number of (n+2)X(6+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal sum minus antidiagonal sum unequal to its neighbors horizontally and vertically 1
70372, 60296, 102616, 345304, 1059528, 3369876, 11094376, 37875928, 127687424, 433506104, 1487290348, 5103062308, 17364021560, 59364164632, 203858329876, 698483613236, 2384062595156, 8159195917844, 27983085762376, 95827264556920 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A253740

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

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

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

CROSSREFS

Sequence in context: A224464 A233987 A243135 * A252104 A236016 A204482

Adjacent sequences:  A253735 A253736 A253737 * A253739 A253740 A253741

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 11 2015

STATUS

approved

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Last modified February 28 08:22 EST 2021. Contains 341695 sequences. (Running on oeis4.)