A206509 Number of (n+1)X6 0..2 arrays with the number of clockwise edge increases in 2X2 subblocks nondecreasing rightwards and downwards

111495, 10505604, 769739571, 47830788954, 2671430859687, 138401623325535, 6781274991216915, 318257080720663863, 14433205926606629808, 636578185379733865623, 27437199789684970128768, 1159984309083884155349523

Offset

1,1

Comments

Column 5 of A206512

Links

R. H. Hardin, Table of n, a(n) for n = 1..122

Example

Some solutions for n=4
..1..2..1..2..1..0....2..1..0..1..1..1....0..0..2..0..0..2....1..0..2..1..2..1
..2..1..2..1..2..1....0..1..0..1..2..1....2..2..1..2..1..0....2..2..1..2..0..2
..1..2..1..2..1..0....0..2..1..2..1..2....0..1..0..1..2..1....2..0..2..0..2..1
..1..0..2..1..2..1....1..0..2..0..2..0....2..2..1..0..1..0....2..1..0..1..0..2
..2..1..0..2..1..0....2..1..0..1..0..1....1..0..2..1..0..2....0..2..1..0..1..0

Crossrefs

Sequence in context: A334170 A179919 A296370 * A033446 A033447 A203667

Adjacent sequences: A206506 A206507 A206508 * A206510 A206511 A206512

Keyword

nonn

Author

R. H. Hardin Feb 08 2012

Status

approved