A237237 Number of (n+1)X(3+1) 0..3 arrays with the maximum plus the lower median minus the upper median minus the minimum of every 2X2 subblock equal

6976, 91744, 1301304, 19274172, 289676104, 4449131420, 68828263944, 1081186864940, 17018044573704, 271159929187820, 4315151645329416, 69417325448052484, 1113035036852046440, 18031255452906128548

Offset

1,1

Comments

Column 3 of A237241

Links

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

R. H. Hardin, Empirical recurrence of order 67

Formula

Empirical recurrence of order 67 (see link above)

Example

Some solutions for n=2
..0..2..3..2....3..0..0..1....0..0..1..3....1..2..1..2....3..0..2..1
..2..1..1..3....3..2..0..3....2..0..3..3....1..3..3..1....3..0..2..1
..2..2..3..2....0..3..1..0....1..1..2..0....3..2..1..2....3..0..2..1

Crossrefs

Sequence in context: A184228 A050225 A305718 * A251651 A050673 A050663

Adjacent sequences: A237234 A237235 A237236 * A237238 A237239 A237240

Keyword

nonn

Author

R. H. Hardin, Feb 05 2014

Status

approved