A236814 Number of (n+1)X(3+1) 0..2 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock equal

1162, 10702, 98380, 956456, 9360398, 93804194, 947327860, 9682975968, 99543701888, 1030061727604, 10698831856789, 111533815357066, 1165405418509395, 12202784081035254, 127950763324803502

Offset

1,1

Comments

Column 3 of A236819

Links

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

R. H. Hardin, Empirical recurrence of order 87

Formula

Empirical recurrence of order 87 (see link above)

Example

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

Crossrefs

Sequence in context: A168248 A237205 A358868 * A152307 A224172 A223863

Adjacent sequences: A236811 A236812 A236813 * A236815 A236816 A236817

Keyword

nonn

Author

R. H. Hardin, Jan 31 2014

Status

approved