A250790 - OEIS

A250790

Number of (n+1)X(n+1) 0..1 arrays with nondecreasing min(x(i,j),x(i,j-1)) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction

10, 66, 482, 3776, 31220, 270598, 2437366, 22741458, 218754226, 2164858272, 21979131840, 228579454066, 2430514618686, 26392486178654, 292283537055778

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OFFSET

1,1

COMMENTS

Diagonal of A250797

LINKS

Table of n, a(n) for n=1..15.

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A232062 A229003 A117305 * A377917 A231886 A278090

Adjacent sequences: A250787 A250788 A250789 * A250791 A250792 A250793

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 27 2014

STATUS

approved