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A256026 Number of (n+2)X(5+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 1 and no column sum 1 1
798, 3500, 18881, 96363, 494704, 2608924, 13744343, 72433360, 383085494, 2025211622, 10699107204, 56559043253, 299094636689, 1581405435044, 8360604894932, 44203749793706, 233723001457450, 1235776972463585 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A256029
LINKS
FORMULA
Empirical recurrence of order 77 (see link above)
EXAMPLE
Some solutions for n=4
..0..1..1..0..1..1..1....1..0..1..1..1..1..0....1..1..1..1..1..1..0
..1..1..1..1..1..1..1....0..1..1..1..1..1..0....0..1..1..1..1..1..1
..1..1..1..1..1..1..1....1..1..1..1..1..1..0....1..1..1..0..1..1..1
..1..1..0..1..1..0..1....1..1..1..1..1..1..0....1..1..1..1..1..1..1
..0..1..1..1..1..1..1....1..1..1..1..1..1..0....1..1..1..1..1..1..0
..1..1..1..1..1..1..0....1..1..1..0..1..1..0....1..0..1..1..1..1..1
CROSSREFS
Sequence in context: A108252 A188536 A252346 * A200201 A045261 A101039
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 13 2015
STATUS
approved

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Last modified July 15 19:27 EDT 2024. Contains 374334 sequences. (Running on oeis4.)