A237483 Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the minimum minus the lower median of every 2X2 subblock equal

1464, 15898, 180730, 2218016, 27849668, 361041844, 4724446414, 62643477220, 833223795952, 11142212389150, 149131165341728, 2000378927238696, 26837240769664704, 360375444728855618, 4839190850208680986

Offset

1,1

Comments

Column 2 of A237488

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
..0..1..1....2..0..1....2..3..1....0..3..3....2..1..3....0..0..0....0..1..3
..2..3..0....1..3..2....1..0..1....1..2..1....1..2..0....3..0..3....3..1..0
..1..2..1....0..2..1....2..3..2....2..1..2....2..3..1....3..0..2....0..1..3
..2..1..2....1..3..2....2..1..0....1..2..3....1..2..2....1..0..3....1..3..0

Crossrefs

Sequence in context: A023074 A164647 A284887 * A280906 A321010 A278368

Adjacent sequences: A237480 A237481 A237482 * A237484 A237485 A237486

Keyword

nonn

Author

R. H. Hardin, Feb 08 2014

Status

approved