A231250 Number of 5Xn 0..3 arrays x(i,j) with each element horizontally, diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 4, no adjacent elements equal, and upper left element zero

0, 68, 3820, 76136, 1872136, 52280836, 1450042214, 39779238784, 1090961713992, 29949193448596, 822275707521646, 22574599504220086, 619748674764223478, 17014270643121556044, 467102227146870996978, 12823614103796550945194

Offset

1,2

Comments

Row 5 of A231246

Links

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

R. H. Hardin, Empirical recurrence of order 62

Formula

Empirical recurrence of order 62 (see link above)

Example

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

Crossrefs

Sequence in context: A204298 A281556 A093268 * A159361 A004298 A223226

Adjacent sequences: A231247 A231248 A231249 * A231251 A231252 A231253

Keyword

nonn

Author

R. H. Hardin, Nov 06 2013

Status

approved