A233976 Number of (n+1)X(3+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 13

7920, 59440, 455832, 4097024, 37974312, 389559628, 4063204904, 45100814568, 501030842392, 5792456074928, 66350084305560, 782242974657312, 9089302555320488, 108144697929807660, 1264930350635066256

Offset

1,1

Comments

Column 3 of A233980

Links

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

Example

Some solutions for n=2
..1..4..1..0....4..0..1..0....3..2..0..0....0..4..3..2....4..6..2..4
..2..0..2..4....3..4..0..4....5..1..4..1....1..0..4..0....5..2..3..0
..1..4..3..0....2..0..1..2....1..2..0..0....0..4..3..4....4..6..2..4

Crossrefs

Sequence in context: A155178 A031922 A121236 * A001228 A036325 A031587

Adjacent sequences: A233973 A233974 A233975 * A233977 A233978 A233979

Keyword

nonn

Author

R. H. Hardin, Dec 18 2013

Status

approved