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A233604 Number of (2+2)X(n+2) 0..2 arrays with no increasing sequence of length 3 horizontally, vertically or antidiagonally downwards 1
342185, 20463326, 1228836823, 73856970690, 4437742405449, 266642245870341, 16020595216911881, 962558718514483306, 57832813368256439630, 3474731841444380222451, 208770030278144266959124 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 2 of A233602

LINKS

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

R. H. Hardin, Empirical recurrence of order 61

FORMULA

Empirical recurrence of order 61 (see link above)

EXAMPLE

Some solutions for n=1

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

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

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

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

CROSSREFS

Sequence in context: A233596 A291420 A266171 * A306796 A029568 A235746

Adjacent sequences:  A233601 A233602 A233603 * A233605 A233606 A233607

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 14 2013

STATUS

approved

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Last modified July 3 02:07 EDT 2022. Contains 355029 sequences. (Running on oeis4.)