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A233486

Number of (n+2)X(4+2) 0..3 arrays with no increasing sequence of length 3 horizontally, diagonally downwards or vertically.

18116531520, 32519299606118, 55442546308058920, 94038386779753884364, 158651203925316697808911, 267457939129841084397425458, 450635011196058144943097350481, 759193722701220137409721033632067

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 4 of A233488

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..53

EXAMPLE

Some solutions for n=1

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

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

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

CROSSREFS

Sequence in context: A330278 A202724 A115537 * A270895 A273186 A185932

Adjacent sequences: A233483 A233484 A233485 * A233487 A233488 A233489

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 11 2013

STATUS

approved

URL: https://oeis.org/A233486

⇱ A233486 - OEIS