A206510 Number of (n+1)X7 0..2 arrays with the number of clockwise edge increases in 2X2 subblocks nondecreasing rightwards and downwards

614367, 103812645, 13397007426, 1444445274765, 138401623325535, 12197461566772314, 1009956457230227994, 79674032690709828993, 6046585204361960568003, 444577014495524485388130

Offset

1,1

Comments

Column 6 of A206512

Links

R. H. Hardin, Table of n, a(n) for n = 1..11

Example

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

Crossrefs

Sequence in context: A230009 A156866 A317480 * A172635 A172707 A254913

Adjacent sequences: A206507 A206508 A206509 * A206511 A206512 A206513

Keyword

nonn

Author

R. H. Hardin Feb 08 2012

Status

approved