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A279462 Number of nX4 0..1 arrays with no element equal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. 1
2, 20, 180, 1722, 15484, 129914, 1079792, 8845592, 71540206, 572555634, 4544198480, 35814522446, 280584310722, 2186897305592, 16968580781888, 131145107324352, 1010053181919720, 7755079215544062, 59376833021426668 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A279466.

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A279466.

Sequence in context: A115489 A105493 A067641 * A037566 A125857 A226312

Adjacent sequences:  A279459 A279460 A279461 * A279463 A279464 A279465

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 12 2016

STATUS

approved

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Last modified November 15 01:07 EST 2019. Contains 329142 sequences. (Running on oeis4.)