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A236254 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the maximum plus the upper median plus the lower median of every 2X2 subblock 4
256, 3208, 3208, 40120, 103364, 40120, 505708, 3307762, 3307762, 505708, 6373768, 107457398, 270817218, 107457398, 6373768, 80221804, 3483281438, 22624359354, 22624359354, 3483281438, 80221804, 1009767552, 112721511432, 1882056542771 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.........256..........3208...........40120...........505708..........6373768

........3208........103364.........3307762........107457398.......3483281438

.......40120.......3307762.......270817218......22624359354....1882056542771

......505708.....107457398.....22624359354....4898826311444.1053449696159322

.....6373768....3483281438...1882056542771.1053449696159322

....80221804..112721511432.156211259916826

..1009767552.3649163332072

.12713539468

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..40

FORMULA

Empirical for column k:

k=1: [linear recurrence of order 48]

EXAMPLE

Some solutions for n=2 k=4

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

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

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

CROSSREFS

Sequence in context: A236133 A205033 A236130 * A236251 A344304 A070056

Adjacent sequences:  A236251 A236252 A236253 * A236255 A236256 A236257

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Jan 21 2014

STATUS

approved

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Last modified June 24 11:45 EDT 2021. Contains 345416 sequences. (Running on oeis4.)