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A253874 Number of (4+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
119040, 2589968, 50414592, 1052857184, 20975776000, 424261181216, 8415694011136, 167533350155040, 3315015958304000, 65750261230687264, 1301328247318549760, 25772170438510291232, 509844817010765307136 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 4 of A253871
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
R. H. Hardin, Empirical recurrence of order 86
FORMULA
Empirical recurrence of order 86 (see link above)
EXAMPLE
Some solutions for n=1
..0..1..1....1..1..0....1..1..0....0..0..1....1..0..1....1..0..1....0..1..0
..0..1..1....0..0..0....0..0..1....1..0..1....1..1..1....0..1..1....0..0..1
..1..1..0....0..1..0....0..0..1....1..0..1....1..1..1....0..1..1....0..1..0
..0..0..0....1..1..1....0..1..1....1..1..1....1..1..1....0..0..1....0..1..0
..1..1..0....0..0..0....0..1..1....0..0..1....0..0..0....1..0..1....1..1..1
..1..0..1....1..1..1....0..0..1....0..1..1....1..0..1....1..1..1....0..0..1
CROSSREFS
Sequence in context: A202285 A250829 A253867 * A253540 A157736 A031686
Adjacent sequences: A253871 A253872 A253873 * A253875 A253876 A253877
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 17 2015
STATUS
approved

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Last modified August 30 19:27 EDT 2024. Contains 375545 sequences. (Running on oeis4.)