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A280678 Number of 6Xn 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
122, 34096, 2642832, 287101721, 29920114246, 3130289979912, 327452072560351, 34253681605884733, 3583141682779617309, 374819732160862162533, 39208546724956189523288, 4101465758881532501508232 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 6 of A280673.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..133

EXAMPLE

Some solutions for n=2

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

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

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

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

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

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

CROSSREFS

Cf. A280673.

Sequence in context: A233016 A282055 A233080 * A209105 A223131 A208256

Adjacent sequences:  A280675 A280676 A280677 * A280679 A280680 A280681

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 07 2017

STATUS

approved

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Last modified September 27 06:29 EDT 2022. Contains 357052 sequences. (Running on oeis4.)