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A280677 Number of 5Xn 0..2 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards. 1
41, 4568, 181640, 9439606, 474736149, 23952262535, 1208240638772, 60949510593245, 3074564570571027, 155095359625755139, 7823728447342567501, 394665220545896300250, 19908746786901511218365, 1004289676988490253656371 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 5 of A280673.

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

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

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

CROSSREFS

Cf. A280673.

Sequence in context: A107690 A068815 A093174 * A209104 A233079 A159992

Adjacent sequences:  A280674 A280675 A280676 * A280678 A280679 A280680

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 07 2017

STATUS

approved

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Last modified October 25 21:15 EDT 2021. Contains 348256 sequences. (Running on oeis4.)