A233837 - OEIS

A233837

Number of (n+2)X(n+2) 0..3 arrays with no increasing sequence of length 3 horizontally or antidiagonally downwards

201664, 1909001345, 220722832237568, 309991751661980537856, 5282676168847397906091279616, 1092733829722948057628861796014602753, 2743515983406193863098184416154650757282395648

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OFFSET

1,1

COMMENTS

Diagonal of A233845

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..10

EXAMPLE

Some solutions for n=1

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

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

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

CROSSREFS

Sequence in context: A233845 A233846 A233838 * A252498 A355332 A274815

Adjacent sequences: A233834 A233835 A233836 * A233838 A233839 A233840

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 16 2013

STATUS

approved