A237220 Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the lower median minus the upper median of every 2X2 subblock equal

1416, 14472, 161598, 2006382, 25423162, 338131394, 4474548444, 60750922148, 815747813196, 11130051942964, 150252339272150, 2051071610480562, 27754491804606758, 378657975664996352, 5130606433713230800

Offset

1,1

Comments

Column 2 of A237225

Links

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

R. H. Hardin, Empirical recurrence of order 88

Formula

Empirical recurrence of order 88 (see link above)

Example

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

Crossrefs

Sequence in context: A237863 A263671 A207046 * A188099 A252106 A252107

Adjacent sequences: A237217 A237218 A237219 * A237221 A237222 A237223

Keyword

nonn

Author

R. H. Hardin, Feb 05 2014

Status

approved