A237163 Number of (n+1)X(4+1) 0..2 arrays with the maximum plus the minimum minus the upper median minus the lower median of every 2X2 subblock equal

2597, 20669, 165317, 1470317, 13373885, 126858645, 1234905853, 12370941453, 127000947377, 1334978964337, 14331550778941, 156806391828197, 1744207573924769, 19678082886606101, 224660761311298345

Offset

1,1

Comments

Column 4 of A237167

Links

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

R. H. Hardin, Empirical recurrence of order 59

Formula

Empirical recurrence of order 59 (see link above)

Example

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

Crossrefs

Sequence in context: A204774 A251899 A236598 * A203257 A326260 A262799

Adjacent sequences: A237160 A237161 A237162 * A237164 A237165 A237166

Keyword

nonn

Author

R. H. Hardin, Feb 04 2014

Status

approved