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A236911 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum plus the upper median plus the minimum of every 2X2 subblock equal 8
256, 1056, 1056, 4448, 6762, 4448, 19888, 44836, 44836, 19888, 89888, 326868, 451396, 326868, 89888, 417488, 2411550, 5345722, 5345722, 2411550, 417488, 1956608, 18527054, 62508118, 109900910, 62508118, 18527054, 1956608, 9312576 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.......256........1056...........4448.............19888...............89888

......1056........6762..........44836............326868.............2411550

......4448.......44836.........451396...........5345722............62508118

.....19888......326868........5345722.........109900910..........2199548878

.....89888.....2411550.......62508118........2199548878.........72805879098

....417488....18527054......789404948.......48719331954.......2754669234544

...1956608...143619570.....9889339846.....1055219565906......99111645582536

...9312576..1138035570...129170196446....24050871268974....3815804319538310

..44619472..9082354564..1678632250620...539501655013126..141806974110918684

.215852576.73458657386.22339759369142.12433820388637890.5472746163209520482

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..112

FORMULA

Empirical for column k:

k=1: [linear recurrence of order 44]

EXAMPLE

Some solutions for n=2 k=4

..0..3..0..3..2....0..2..2..3..0....0..3..0..1..0....0..1..0..2..2

..2..0..2..1..0....0..3..0..2..0....2..1..2..3..2....2..2..2..2..0

..0..3..0..3..2....0..2..2..3..2....2..2..1..0..0....0..2..0..2..1

CROSSREFS

Sequence in context: A205595 A255663 A045034 * A236904 A206198 A237218

Adjacent sequences:  A236908 A236909 A236910 * A236912 A236913 A236914

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Feb 01 2014

STATUS

approved

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Last modified January 25 17:14 EST 2022. Contains 350572 sequences. (Running on oeis4.)