login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A234184
T(n,k)=Number of (n+1)X(k+1) 0..5 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1
9
76, 388, 388, 1978, 3908, 1978, 10120, 39098, 39098, 10120, 51886, 392664, 771710, 392664, 51886, 266434, 3949718, 15322566, 15322566, 3949718, 266434, 1369642, 39781838, 304760768, 604124712, 304760768, 39781838, 1369642, 7046416
OFFSET
1,1
COMMENTS
Table starts
.....76......388.......1978........10120...........51886............266434
....388.....3908......39098.......392664.........3949718..........39781838
...1978....39098.....771710.....15322566.......304760768........6069161546
..10120...392664...15322566....604124712.....23888919458......946183426722
..51886..3949718..304760768..23888919458...1881935211706...148632892397508
.266434.39781838.6069161546.946183426722.148632892397508.23438907703606286
LINKS
FORMULA
Empirical for column k:
k=1: a(n) = 10*a(n-1) -27*a(n-2) +3*a(n-3) +36*a(n-4) +12*a(n-5)
k=2: [order 11]
k=3: [order 22]
k=4: [order 60]
EXAMPLE
Some solutions for n=2 k=4
..0..0..1..2..2....1..0..1..0..0....1..0..1..0..1....1..2..1..2..2
..0..1..1..1..1....1..1..1..1..1....1..1..0..1..1....1..1..2..1..1
..1..0..1..1..1....0..1..1..2..1....0..1..1..1..1....0..1..2..1..1
CROSSREFS
Sequence in context: A377165 A067987 A167586 * A234177 A205926 A205919
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Dec 20 2013
STATUS
approved