A237103 Number of (n+1)X(3+1) 0..2 arrays with the maximum minus the upper median of every 2X2 subblock equal

1881, 39235, 848549, 20079181, 485177201, 11899510847, 293281801479, 7246691140947, 179233623871063, 4435034452955467, 109763297065189051, 2716780520543217999, 67246261190000231507, 1664519926327175700477

Offset

1,1

Comments

Column 3 of A237108

Links

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

R. H. Hardin, Empirical recurrence of order 54

Formula

Empirical recurrence of order 54 (see link above)

Example

Some solutions for n=2
..2..0..2..2....2..1..2..1....1..2..1..2....2..1..1..2....2..2..2..1
..1..2..2..1....2..2..2..2....2..0..2..2....2..2..2..2....2..2..2..2
..2..1..0..2....2..2..1..2....2..0..2..0....0..0..2..0....2..0..2..0

Crossrefs

Sequence in context: A072494 A260137 A246478 * A222799 A252111 A259960

Adjacent sequences: A237100 A237101 A237102 * A237104 A237105 A237106

Keyword

nonn

Author

R. H. Hardin, Feb 03 2014

Status

approved