A232386 Number of (n+1)X(3+1) 0..3 arrays with every element next to itself plus and minus one within the range 0..3 horizontally, vertically or antidiagonally, with no adjacent elements equal

78, 192, 1192, 4646, 24848, 120264, 589172, 2974842, 14684400, 73356856, 366069576, 1823482622, 9105338968, 45429265214, 226696769918, 1131682247286, 5648099378356, 28193675408362, 140735701677746, 702504316645786

Offset

1,1

Comments

Column 3 of A232391

Links

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

Example

Some solutions for n=6
..0..1..2..3....0..2..0..1....3..0..2..1....0..1..2..3....0..1..0..2
..2..3..1..0....1..3..2..0....2..1..3..0....2..3..1..0....3..2..3..1
..1..0..3..1....2..0..3..1....0..2..1..3....1..0..3..1....0..1..0..2
..3..1..2..0....3..1..2..3....1..3..2..1....3..1..2..3....3..2..1..3
..2..0..1..2....2..3..0..1....0..1..3..0....2..3..0..1....0..3..2..0
..3..2..3..1....0..2..3..2....3..0..2..1....0..1..3..2....1..0..1..2
..0..1..2..0....1..0..1..3....2..1..3..0....3..2..1..0....2..3..0..3

Crossrefs

Sequence in context: A119146 A044410 A044791 * A257484 A068130 A118938

Adjacent sequences: A232383 A232384 A232385 * A232387 A232388 A232389

Keyword

nonn

Author

R. H. Hardin, Nov 23 2013

Status

approved