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A233706 Number of (1+2)X(n+2) 0..3 arrays with no increasing sequence of length 3 horizontally, vertically, diagonally downwards or antidiagonally downwards 1
164860, 7442986, 336085716, 15181195220, 684540459662, 30867953018180, 1391576275588606, 62734772781863860, 2828089225813921212, 127490606293041633351, 5747257439547644528906, 259085528588813709797896 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 1 of A233705

LINKS

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

R. H. Hardin, Empirical recurrence of order 88

FORMULA

Empirical recurrence of order 88 (see link above)

EXAMPLE

Some solutions for n=1

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

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

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

CROSSREFS

Sequence in context: A234680 A226004 A233705 * A233701 A224582 A352974

Adjacent sequences: A233703 A233704 A233705 * A233707 A233708 A233709

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 15 2013

STATUS

approved

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Last modified December 2 07:55 EST 2022. Contains 358493 sequences. (Running on oeis4.)