A237892 Number of (n+1)X(2+1) 0..3 arrays with the maximum minus the upper median of every 2X2 subblock equal

1848, 32404, 563534, 10390072, 192679586, 3656111168, 69880910510, 1354602459492, 26423503103206, 520224893307102, 10292078205768904, 204855535539083954, 4091933334529142304, 82056580086881824236

Offset

1,1

Comments

Column 2 of A237898

Links

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

R. H. Hardin, Empirical recurrence of order 47

Formula

Empirical recurrence of order 47 (see link above)

Example

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

Crossrefs

Sequence in context: A090783 A247724 A236030 * A326318 A115719 A062670

Adjacent sequences: A237889 A237890 A237891 * A237893 A237894 A237895

Keyword

nonn

Author

R. H. Hardin, Feb 15 2014

Status

approved