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A237481 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the maximum plus the lower median of every 2X2 subblock equal 9
81, 331, 331, 1337, 2529, 1337, 5819, 19175, 19175, 5819, 25665, 160005, 273756, 160005, 25665, 116187, 1361797, 4384979, 4384979, 1361797, 116187, 532185, 11938523, 71061267, 135347721, 71061267, 11938523, 532185, 2467403, 105900839 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.......81.........331...........1337...............5819.................25665

......331........2529..........19175.............160005...............1361797

.....1337.......19175.........273756............4384979..............71061267

.....5819......160005........4384979..........135347721............4188037863

....25665.....1361797.......71061267.........4188037863..........244543486040

...116187....11938523.....1184249828.......132748335297........14599663417999

...532185...105900839....19835148309......4208355146361.......868139379770175

..2467403...950031897...334897261287....134202687618205.....51894532499038489

.11527361..8571447311..5664023361820...4277984976206545...3096658579246734659

.54215595.77703482543.96038927867955.136603366590475107.185083514232316446680

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..180

FORMULA

Empirical for column k:

k=1: [linear recurrence of order 15]

k=2: [order 30]

k=3: [order 73]

EXAMPLE

Some solutions for n=2 k=4

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

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

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

CROSSREFS

Sequence in context: A237511 A237504 A222162 * A237474 A237868 A237861

Adjacent sequences:  A237478 A237479 A237480 * A237482 A237483 A237484

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Feb 08 2014

STATUS

approved

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Last modified October 5 04:48 EDT 2022. Contains 357243 sequences. (Running on oeis4.)