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A269212 Number of nX6 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three exactly once. 1
1620, 360960, 70371048, 11985002256, 1910809190712, 292321215814512, 43468685827935816, 6331185189881558208, 907653167033915932536, 128509758210816109187040, 18012346515317443065043752 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A269214.

LINKS

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

R. H. Hardin, Empirical recurrence of order 42

FORMULA

Empirical recurrence of order 42 (see link above)

EXAMPLE

Some solutions for n=2

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

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

CROSSREFS

Cf. A269214.

Sequence in context: A269278 A269184 A269150 * A269095 A269274 A020418

Adjacent sequences:  A269209 A269210 A269211 * A269213 A269214 A269215

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 20 2016

STATUS

approved

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Last modified November 16 17:04 EST 2019. Contains 329201 sequences. (Running on oeis4.)