A236793 Number of (n+1)X(3+1) 0..2 arrays with the maximum plus the upper median plus the minimum of every 2X2 subblock equal

825, 6217, 47831, 420133, 3722333, 34857701, 327044595, 3142571647, 30163324455, 292580627371, 2833735962287, 27576788024513, 268062581546783, 2611496864226001, 25423252467853609, 247758144088418341

Offset

1,1

Comments

Column 3 of A236798

Links

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

R. H. Hardin, Empirical recurrence of order 83

Formula

Empirical recurrence of order 83 (see link above)

Example

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

Crossrefs

Sequence in context: A247922 A283201 A283731 * A051989 A237062 A251616

Adjacent sequences: A236790 A236791 A236792 * A236794 A236795 A236796

Keyword

nonn

Author

R. H. Hardin, Jan 31 2014

Status

approved