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A188863 Number of n X 6 binary arrays without the pattern 0 1 diagonally, vertically or antidiagonally. 1
64, 239, 466, 707, 950, 1193, 1436, 1679, 1922, 2165, 2408, 2651, 2894, 3137, 3380, 3623, 3866, 4109, 4352, 4595, 4838, 5081, 5324, 5567, 5810, 6053, 6296, 6539, 6782, 7025, 7268, 7511, 7754, 7997, 8240, 8483, 8726, 8969, 9212, 9455, 9698, 9941, 10184 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A188866.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..200

FORMULA

Empirical: a(n) = 243*n - 265 for n>3.

Empirical g.f.: x*(64 + 111*x + 52*x^2 + 14*x^3 + 2*x^4) / (1 - x)^2. - Colin Barker, May 01 2018

EXAMPLE

Some solutions for 3 X 6:

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

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

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

CROSSREFS

Cf. A188866.

Sequence in context: A228802 A222547 A218524 * A228687 A349109 A223332

Adjacent sequences:  A188860 A188861 A188862 * A188864 A188865 A188866

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 12 2011

STATUS

approved

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Last modified May 17 04:28 EDT 2022. Contains 353730 sequences. (Running on oeis4.)