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A235588 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the difference of the upper median and minimum value of each 2X2 subblock in lexicographically nondecreasing order rowwise and columnwise 5
81, 549, 549, 3459, 8678, 3459, 20537, 125917, 125917, 20537, 118383, 1660676, 4421414, 1660676, 118383, 668041, 20719004, 140378037, 140378037, 20719004, 668041, 3720671, 246491295, 4163928036, 11284713813, 4163928036, 246491295 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

........81..........549...........3459............20537............118383

.......549.........8678.........125917..........1660676..........20719004

......3459.......125917........4421414........140378037........4163928036

.....20537......1660676......140378037......11284713813......864122401640

....118383.....20719004.....4163928036.....864122401640...179329543464972

....668041....246491295...114786490439...61249068090242.34988442623259443

...3720671...2840913933..2990032682541.4044723177106236

..20536617..31961677744.74106981549899

.112678583.353604367053

.615713801

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..60

FORMULA

Empirical for column 1: [linear recurrence of order 14]

EXAMPLE

Some solutions for n=2 k=4

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

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

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

CROSSREFS

Sequence in context: A253462 A206512 A235833 * A206505 A235584 A231973

Adjacent sequences:  A235585 A235586 A235587 * A235589 A235590 A235591

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Jan 12 2014

STATUS

approved

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Last modified October 15 21:17 EDT 2019. Contains 328038 sequences. (Running on oeis4.)