A234784 Number of (n+1)X(6+1) 0..3 arrays with no adjacent elements equal and with each 2X2 subblock having the number of clockwise edge increases equal to the number of counterclockwise edge increases

797988, 241927524, 75353928188, 23692759265012, 7476894104333052, 2363085244017636364, 747324517604795047044, 236402993427571147646860, 74790182365485126434100804, 23662267614587185373925151684

Offset

1,1

Comments

Column 6 of A234786

Links

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

Example

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

Crossrefs

Sequence in context: A259304 A151561 A022203 * A206135 A237543 A053086

Adjacent sequences: A234781 A234782 A234783 * A234785 A234786 A234787

Keyword

nonn

Author

R. H. Hardin, Dec 30 2013

Status

approved