A234783 Number of (n+1)X(5+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

125228, 17521780, 2502596188, 359793857812, 51845281856108, 7476894104333052, 1078605317680077396, 155614824084934672788, 22452077551856021854716, 3239428188830770758924524, 467393277375896551656412372

Offset

1,1

Comments

Column 5 of A234786

Links

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

R. H. Hardin, Empirical recurrence of order 70

Formula

Empirical recurrence of order 70 (see link above)

Example

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

Crossrefs

Sequence in context: A351948 A341115 A183797 * A206134 A364126 A237728

Adjacent sequences: A234780 A234781 A234782 * A234784 A234785 A234786

Keyword

nonn

Author

R. H. Hardin, Dec 30 2013

Status

approved