A205518 Number of (n+1)X7 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock differing from each horizontal or vertical neighbor

160218, 6127554, 312856410, 15535355076, 764670893556, 37886453633808, 1873315597879056, 92643820648532838, 4582814248323919434, 226655621821802013390, 11210406172911766981086, 554474191273253102643840

Offset

1,1

Comments

Column 6 of A205520

Links

R. H. Hardin, Table of n, a(n) for n = 1..93

Example

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

Crossrefs

Sequence in context: A013897 A205742 A206674 * A141816 A097626 A212081

Adjacent sequences: A205515 A205516 A205517 * A205519 A205520 A205521

Keyword

nonn

Author

R. H. Hardin Jan 28 2012

Status

approved