A269212 Number of nX6 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three exactly once.

1620, 360960, 70371048, 11985002256, 1910809190712, 292321215814512, 43468685827935816, 6331185189881558208, 907653167033915932536, 128509758210816109187040, 18012346515317443065043752

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