A236299 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the maximum plus the upper median plus the minimum of every 2X2 subblock

256, 3040, 3040, 36192, 85886, 36192, 432292, 2426656, 2426656, 432292, 5161664, 69129636, 163123586, 69129636, 5161664, 61594004, 1964531406, 11087508870, 11087508870, 1964531406, 61594004, 735086888, 55823555892, 750177961091

Offset

1,1

Comments

Table starts

.......256........3040........36192........432292......5161664.......61594004

......3040.......85886......2426656......69129636...1964531406....55823555892

.....36192.....2426656....163123586...11087508870.750177961091.50754351535564

....432292....69129636..11087508870.1808856772856

...5161664..1964531406.750177961091

..61594004.55823555892

.735086888

Links

R. H. Hardin, Table of n, a(n) for n = 1..31

Formula

Empirical for column k:

k=1: [linear recurrence of order 46]

Example

Some solutions for n=2 k=4
..0..0..3..3..0....0..0..0..1..0....0..0..3..1..0....0..0..1..3..1
..0..0..1..2..1....0..0..1..0..0....0..0..1..3..3....0..0..0..0..3
..0..2..1..3..3....0..1..0..2..3....0..1..1..1..2....0..2..1..1..2

Crossrefs

Sequence in context: A235665 A235430 A235426 * A236296 A138333 A236123

Adjacent sequences: A236296 A236297 A236298 * A236300 A236301 A236302

Keyword

nonn,tabl

Author

R. H. Hardin, Jan 21 2014

Status

approved