A234772 Number of (n+1)X(3+1) 0..4 arrays with 2X2 edge jumps all no more than +1 in one of the clockwise or counterclockwise directions but not both

2056, 28840, 301776, 4255966, 49077768, 678552840, 8058197452, 109362379520, 1321852668660, 17679539166428, 216465813530752, 2862957285500140, 35397862176906684, 464184948090425520, 5782110121303095708

Offset

1,1

Comments

Column 3 of A234777

Links

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

R. H. Hardin, Empirical recurrence of order 52

Formula

Empirical recurrence of order 52 (see link above)

Example

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

Crossrefs

Sequence in context: A252187 A252509 A250331 * A168227 A321488 A074996

Adjacent sequences: A234769 A234770 A234771 * A234773 A234774 A234775

Keyword

nonn

Author

R. H. Hardin, Dec 30 2013

Status

approved