A205923 Number of (n+1)X6 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one, and every 2X2 determinant nonzero

43572, 625713, 2570656, 40724536, 160958484, 2853968414, 10728448308, 211429772688, 754561785732, 16278205531616, 55286226231796, 1284908055552116, 4173733499632580, 103047990229862968, 322043332960925984

Offset

1,1

Comments

Column 5 of A205926

Links

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

Example

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

Crossrefs

Sequence in context: A224623 A210331 A233690 * A251995 A094493 A342580

Adjacent sequences: A205920 A205921 A205922 * A205924 A205925 A205926

Keyword

nonn

Author

R. H. Hardin Feb 01 2012

Status

approved