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A239153 Number of (n+1)X(4+1) 0..3 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..3 introduced in row major order 1
24, 24, 12159, 135766, 12844591, 330311070, 18120156500, 629468400383, 28646802159654, 1108832844851022, 47257467282260746, 1901383445656471050, 79172996011297669608, 3229805113653824580575, 133380680053667604594194 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A239155

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..55

EXAMPLE

Some solutions for n=4

..0..1..2..0..3....0..1..0..2..1....0..1..0..1..0....0..1..0..2..3

..0..1..2..0..3....0..1..0..2..1....0..1..0..1..0....0..1..0..2..3

..0..2..0..0..3....1..2..0..2..3....2..1..2..1..0....2..1..0..2..3

..3..2..0..2..3....1..2..0..2..3....2..1..2..2..0....2..0..1..0..3

..3..2..0..2..3....1..2..0..2..3....2..1..2..2..0....2..0..1..0..3

CROSSREFS

Sequence in context: A128378 A165845 A189049 * A004513 A004465 A271232

Adjacent sequences:  A239150 A239151 A239152 * A239154 A239155 A239156

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 11 2014

STATUS

approved

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Last modified November 26 21:07 EST 2021. Contains 349344 sequences. (Running on oeis4.)