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A236127
T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the maximum plus the upper median minus the lower median of every 2X2 subblock
4
256, 2782, 2782, 30660, 65360, 30660, 337810, 1546388, 1546388, 337810, 3723012, 36646316, 79435700, 36646316, 3723012, 41005528, 867557598, 4076346506, 4076346506, 867557598, 41005528, 451716944, 20540949574, 209227480445
OFFSET
1,1
COMMENTS
Table starts
........256.........2782..........30660.........337810........3723012
.......2782........65360........1546388.......36646316......867557598
......30660......1546388.......79435700.....4076346506...209227480445
.....337810.....36646316.....4076346506...454310298366.50611825632254
....3723012....867557598...209227480445.50611825632254
...41005528..20540949574.10737439549324
..451716944.486339042016
.4976199592
LINKS
FORMULA
Empirical for column k:
k=1: [linear recurrence of order 40]
EXAMPLE
Some solutions for n=2 k=4
..0..0..3..1..2....0..0..0..3..3....0..0..2..1..3....0..0..2..3..0
..0..0..2..0..1....0..0..1..0..1....0..0..0..3..1....0..0..0..0..1
..0..1..0..3..2....0..2..2..1..3....0..1..3..0..1....0..3..2..2..0
CROSSREFS
Sequence in context: A236315 A205422 A205417 * A236124 A236949 A236942
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 19 2014
STATUS
approved