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A251306 Number of (n+1)X(6+1) 0..3 arrays with no 2X2 subblock having the sum of its diagonal elements less than the maximum of its antidiagonal elements 1
42010273, 144740268503, 490318888438553, 1661155660245079699, 5630923998265406722615, 19086544089749117279820644, 64691402985380930946801585128, 219262663801594343256152022742493 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A251308

LINKS

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

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A130681 A261658 A274812 * A198168 A218109 A263561

Adjacent sequences:  A251303 A251304 A251305 * A251307 A251308 A251309

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 01 2014

STATUS

approved

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Last modified June 28 03:47 EDT 2017. Contains 288813 sequences.