A234775 Number of (n+1) X (6+1) 0..4 arrays with 2 X 2 edge jumps all no more than +1 in one of the clockwise or counterclockwise directions but not both.

226072, 16146124, 678552840, 56840484142, 2946351948550, 246363393577300, 13749337911101866, 1116643713289444600, 65315949363249729762, 5149349479939652533322, 312098407089840965356508, 23977403295449873646894224, 1494182338039225888214108374, 112351883657440174504966626546

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..83

Example

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

Crossrefs

Column 6 of A234777.

Sequence in context: A203922 A237032 A067141 * A187598 A061134 A179730

Adjacent sequences: A234772 A234773 A234774 * A234776 A234777 A234778

Keyword

nonn

Author

R. H. Hardin, Dec 30 2013

Status

approved