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A257147 Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column minus the sum of the minimums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally 0
512, 16677, 732482, 51899365, 6713096472, 1618913713517, 695152560346535, 535333746001462703, 743423728273958126735, 1857204484036444866135303 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A257154
LINKS
EXAMPLE
Some solutions for n=2
..1..1..1..0....1..0..0..1....0..0..1..1....0..0..0..1....1..1..0..1
..0..1..1..0....0..0..0..1....1..0..0..0....1..0..0..1....1..0..0..0
..1..1..1..1....0..0..1..0....0..1..0..1....0..0..0..1....0..0..0..0
..1..1..1..0....1..0..1..0....0..0..0..1....0..1..1..0....0..0..1..0
CROSSREFS
Sequence in context: A254812 A329894 A258523 * A254579 A195657 A072369
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 16 2015
STATUS
approved

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Last modified March 28 12:59 EDT 2024. Contains 371254 sequences. (Running on oeis4.)