A236005 Number of (n+1)X(3+1) 0..3 arrays with the minimum plus the maximum equal to the lower median plus the upper median in every 2X2 subblock

2960, 41608, 587908, 8623452, 130105204, 2020106076, 32207456576, 526051660468, 8776747793696, 149126416376292, 2572768815952496, 44945537009056724, 793178747691319552, 14111447386534908836, 252672813228732519144

Offset

1,1

Comments

Column 3 of A236009

Links

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

R. H. Hardin, Empirical recurrence of order 70

Formula

Empirical recurrence of order 70 (see link above)

Example

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

Crossrefs

Sequence in context: A054833 A054212 A179138 * A107534 A184079 A236590

Adjacent sequences: A236002 A236003 A236004 * A236006 A236007 A236008

Keyword

nonn

Author

R. H. Hardin, Jan 18 2014

Status

approved