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A250979 Number of (n+1)X(5+1) 0..2 arrays with no 2X2 subblock having the sum of its diagonal elements less than the absolute difference of its antidiagonal elements 1
280728, 120515358, 51487962431, 22020178055066, 9416933752243198, 4027179649653568467, 1722239421934657361988, 736522541298498562329652, 314976772820106600258421647, 134701061664914227033369089905 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A250982

LINKS

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

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A145873 A253033 A203867 * A257151 A257158 A254740

Adjacent sequences:  A250976 A250977 A250978 * A250980 A250981 A250982

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 29 2014

STATUS

approved

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Last modified October 18 08:58 EDT 2021. Contains 348067 sequences. (Running on oeis4.)