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A233151 Number of n X n 0..2 arrays with no element x(i,j) adjacent to value 2-x(i,j) horizontally or antidiagonally 1
3, 24, 432, 17496, 1658232, 367125912, 191184793128, 234385100907480, 677856222475099560, 4627785508146660629232, 74650443539914896103253016, 2846446729148572555427535908448, 256684477494955879310882598953790768 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A233155

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..17

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A193210 A065761 A002832 * A236466 A185970 A279165

Adjacent sequences:  A233148 A233149 A233150 * A233152 A233153 A233154

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 05 2013

STATUS

approved

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Last modified October 15 15:14 EDT 2019. Contains 328030 sequences. (Running on oeis4.)