A250826 - OEIS

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A250826

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with nondecreasing maximum minus minimum of every three consecutive values in every row and column

512, 2744, 2744, 13824, 22874, 13824, 64000, 176184, 176184, 64000, 287496, 1217728, 2040816, 1217728, 287496, 1259712, 8095062, 20732624, 20732624, 8095062, 1259712, 5451776, 52143132, 200874408, 302915648, 200874408, 52143132

(list; table; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Table starts

.......512........2744..........13824...........64000..........287496

......2744.......22874.........176184.........1217728.........8095062

.....13824......176184........2040816........20732624.......200874408

.....64000.....1217728.......20732624.......302915648......4186865990

....287496.....8095062......200874408......4186865990.....81917131662

...1259712....52143132.....1873942536.....55391628438...1525209775370

...5451776...330659096....17157277544....717128181424..27712939162396

..23393656..2074791394...155136190168...9152761172914.495562964644754

..99897344.12942194000..1393116306944.115912443947616

.425259008.80432210624.12456789266800

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..84

FORMULA

Empirical for column k:

k=1: [linear recurrence of order 10]

k=2: [order 29]

EXAMPLE

Some solutions for n=2 k=4

..0..0..0..1..0..1....0..0..0..1..0..0....0..0..0..0..0..0....0..0..0..0..0..1

..0..0..0..1..0..0....1..0..0..1..0..0....0..1..0..1..0..0....0..0..1..0..0..1

..1..1..0..1..0..1....1..0..1..0..0..1....0..0..0..0..0..1....0..1..0..1..0..0

..1..1..1..0..1..1....0..0..1..0..1..1....0..0..1..0..0..1....0..0..0..0..0..1

CROSSREFS

Sequence in context: A253993 A258910 A253986 * A250504 A250820 A250497

Adjacent sequences: A250823 A250824 A250825 * A250827 A250828 A250829

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Nov 27 2014

STATUS

approved