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A235677 Number of (n+1)X(6+1) 0..1 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise 1
9418, 650928, 44196144, 2985166430, 201368802704, 13578805464958, 915571832243030, 61732408470815696, 4162281818292994236, 280639690768870439812, 18921978290641266201918, 1275803956877960415549616 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A235679

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical recurrence of order 87

FORMULA

Empirical recurrence of order 87 (see link above)

EXAMPLE

Some solutions for n=1

..0..1..0..0..1..0..1....0..0..0..1..0..1..0....1..1..1..1..0..0..1

..0..1..1..0..0..0..0....0..0..0..0..0..0..0....1..1..1..0..1..1..1

CROSSREFS

Sequence in context: A031775 A143367 A234432 * A235447 A068220 A136145

Adjacent sequences:  A235674 A235675 A235676 * A235678 A235679 A235680

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 13 2014

STATUS

approved

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Last modified May 13 22:47 EDT 2021. Contains 343868 sequences. (Running on oeis4.)