A233993 Number of (n+1)X(4+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 18

17156, 51026, 150572, 560408, 2021016, 9191620, 39038268, 213791308, 1031265884, 6478189956, 33941673948, 230895962640, 1269494065360, 8976203094604, 50758367608856, 364579538686824, 2098173723540476, 15134353956170396

Offset

1,1

Comments

Column 4 of A233997

Links

R. H. Hardin, Table of n, a(n) for n = 1..152

Example

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

Crossrefs

Sequence in context: A218247 A235891 A251207 * A043621 A334310 A293478

Adjacent sequences: A233990 A233991 A233992 * A233994 A233995 A233996

Keyword

nonn

Author

R. H. Hardin, Dec 18 2013

Status

approved