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A253858 Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal minimum nondecreasing horizontally and vertically 1
19456, 291392, 4186496, 54933632, 700079360, 9090451328, 118920758784, 1541740409984, 20040279401216, 260372862960000, 3382959819079680, 43972750683508352, 571716808018664704, 7430928932383333248 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A253863

LINKS

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

R. H. Hardin, Empirical recurrence of order 70

FORMULA

Empirical recurrence of order 70 (see link above)

EXAMPLE

Some solutions for n=1

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

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

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

CROSSREFS

Sequence in context: A140930 A254486 A254493 * A336982 A345574 A345575

Adjacent sequences: A253855 A253856 A253857 * A253859 A253860 A253861

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 17 2015

STATUS

approved

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Last modified January 31 17:49 EST 2023. Contains 359980 sequences. (Running on oeis4.)