A253858 Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal minimum nondecreasing horizontally and vertically

19456, 291392, 4186496, 54933632, 700079360, 9090451328, 118920758784, 1541740409984, 20040279401216, 260372862960000, 3382959819079680, 43972750683508352, 571716808018664704, 7430928932383333248

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