A206315 Number of (n+1)X6 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to two, and every 2X2 determinant nonzero

418468, 77132181, 14309749540, 2656145209648, 492612276280514, 91342748577948857, 16933907482183625564, 3139181759716837800994, 581918239365125184573987, 107870252944675279760828811

Offset

1,1

Comments

Column 5 of A206318

Links

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

Example

Some solutions for n=4
..2..0..3..0..1..0....3..2..3..1..2..2....3..2..1..1..0..1....1..3..0..2..3..0
..1..1..0..1..0..3....2..1..2..1..0..3....1..0..3..2..1..0....3..1..3..0..2..2
..0..3..1..3..2..0....0..2..3..2..1..0....2..1..0..3..2..1....1..3..0..1..0..3
..2..0..2..1..3..1....3..2..0..3..2..1....3..2..1..0..3..2....2..0..1..3..2..1
..3..1..3..2..1..2....2..3..1..0..3..2....1..3..2..1..0..3....1..2..1..0..3..2

Crossrefs

Sequence in context: A259404 A116936 A255081 * A184373 A164729 A164730

Adjacent sequences: A206312 A206313 A206314 * A206316 A206317 A206318

Keyword

nonn

Author

R. H. Hardin Feb 06 2012

Status

approved