login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A237142 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum plus the upper median of every 2X2 subblock equal 9
256, 1500, 1500, 8414, 22960, 8414, 52484, 333446, 333446, 52484, 328768, 5961802, 9999802, 5961802, 328768, 2145192, 107652788, 436271890, 436271890, 107652788, 2145192, 14152560, 2051159992, 17759803582, 50384979024, 17759803582 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

......256........1500...........8414.............52484...............328768

.....1500.......22960.........333446...........5961802............107652788

.....8414......333446........9999802.........436271890..........17759803582

....52484.....5961802......436271890.......50384979024........5202836871398

...328768...107652788....17759803582.....5202836871398.....1265341553110578

..2145192..2051159992...786068103136...584749165564886...343189152916040638

.14152560.39515565068.34365943860434.64333155899089090.89542359784737823891

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..199

FORMULA

Empirical for column k:

k=1: [linear recurrence of order 22]

k=2: [order 44]

k=3: [order 93]

EXAMPLE

Some solutions for n=2 k=4

..0..0..2..1..2....0..0..2..1..2....0..0..3..0..3....0..0..2..2..0

..2..1..0..1..1....2..2..2..2..2....3..2..2..2..2....2..3..2..3..1

..1..0..2..0..2....0..2..0..0..0....1..0..3..2..3....1..2..0..0..2

CROSSREFS

Sequence in context: A333606 A237974 A237967 * A237135 A197709 A198073

Adjacent sequences:  A237139 A237140 A237141 * A237143 A237144 A237145

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Feb 04 2014

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 27 19:06 EST 2021. Contains 349394 sequences. (Running on oeis4.)