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

24, 24, 12159, 135766, 12844591, 330311070, 18120156500, 629468400383, 28646802159654, 1108832844851022, 47257467282260746, 1901383445656471050, 79172996011297669608, 3229805113653824580575, 133380680053667604594194

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 * A371971 A004513 A004465

Adjacent sequences: A239150 A239151 A239152 * A239154 A239155 A239156

Keyword

nonn

Author

R. H. Hardin, Mar 11 2014

Status

approved