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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
1
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
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
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 18 2013
STATUS
approved