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A250971
Number of (n+1)X(6+1) 0..1 arrays with no 2X2 subblock having the sum of its diagonal elements less than the absolute difference of its antidiagonal elements
1
7448, 489543, 32124018, 2112130109, 138900769559, 9135168475316, 600808386292820, 39514486757351514, 2598824818868706096, 170921926401546121395, 11241352463500152822391, 739331740764868834365986
OFFSET
1,1
COMMENTS
Column 6 of A250973
FORMULA
Empirical recurrence of order 57 (see link above)
EXAMPLE
Some solutions for n=1
..1..0..1..1..0..0..1....1..0..0..1..1..0..1....0..1..1..1..0..1..1
..1..1..0..1..0..0..1....0..0..1..0..0..1..0....1..0..0..0..0..1..1
CROSSREFS
Sequence in context: A051259 A289517 A178281 * A250239 A330713 A253338
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 29 2014
STATUS
approved