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A275092 Number of 4Xn 0..2 arrays with no element equal to any value at offset (0,-2) (-1,-2) or (-2,-1) and new values introduced in order 0..2. 1
14, 486, 1024, 3088, 12816, 53132, 232156, 984288, 4304608, 18686420, 81545856, 355534620, 1548803468, 6754327372, 29407955624, 128203071808, 558360538308, 2433519428172, 10601710686752, 46199290950200, 201293175872408 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 4 of A275090.

LINKS

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

R. H. Hardin, Empirical recurrence of order 84

FORMULA

Empirical recurrence of order 84 (see link above)

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A275090.

Sequence in context: A200061 A171208 A331612 * A275348 A317635 A128051

Adjacent sequences:  A275089 A275090 A275091 * A275093 A275094 A275095

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 16 2016

STATUS

approved

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Last modified October 25 05:57 EDT 2021. Contains 348239 sequences. (Running on oeis4.)