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A258886 Number of (n+2)X(n+2) 0..1 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum 1
242, 2304, 6072, 7225, 12544, 21025, 32400, 48841, 69696, 97969, 132496, 177241, 230400, 297025, 374544, 469225, 577600, 707281, 853776, 1026169, 1218816, 1442401, 1690000, 1974025, 2286144, 2640625, 3027600, 3463321, 3936256, 4464769 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A258894
LINKS
EXAMPLE
Some solutions for n=4
..1..1..0..0..0..1....1..0..0..0..0..1....1..1..0..0..0..0....1..1..0..1..0..0
..1..1..0..0..0..0....0..1..0..0..0..0....1..0..0..0..0..1....1..1..1..0..1..1
..1..0..0..0..0..1....1..0..0..0..0..1....1..0..0..0..0..0....1..1..0..1..0..1
..1..0..0..0..0..0....0..0..0..0..0..0....1..0..0..0..0..1....1..0..1..0..1..1
..0..0..0..0..0..1....1..0..0..0..0..1....0..0..0..0..1..1....1..0..0..1..1..1
..1..0..0..0..1..0....0..0..0..0..1..1....0..0..0..0..1..1....0..0..0..0..1..1
CROSSREFS
Sequence in context: A258887 A234484 A160551 * A354563 A354565 A165935
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 14 2015
STATUS
approved

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Last modified April 25 06:49 EDT 2024. Contains 371964 sequences. (Running on oeis4.)