login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A200579
T(n,k)=Number of nXk 0..2 arrays with no average of any element and its horizontal and vertical neighbors equal to one
9
2, 6, 6, 10, 36, 10, 22, 174, 174, 22, 52, 922, 2174, 922, 52, 114, 5202, 28890, 28890, 5202, 114, 260, 29180, 388824, 938128, 388824, 29180, 260, 600, 163706, 5236786, 30603332, 30603332, 5236786, 163706, 600, 1374, 919924, 70594592, 997303772
OFFSET
1,1
COMMENTS
Table starts
....2........6...........10.............22...............52..............114
....6.......36..........174............922.............5202............29180
...10......174.........2174..........28890...........388824..........5236786
...22......922........28890.........938128.........30603332........997303772
...52.....5202.......388824.......30603332.......2421467558.....190970366840
..114....29180......5236786......997303772.....190970366840...36460159508108
..260...163706.....70594592....32523513414...15075017283404.6967106819900592
..600...919924....951777602..1060675282092.1190087102438968
.1374..5171420..12832277870.34590199046646
.3162.29068726.173011315794
LINKS
EXAMPLE
Some solutions for n=5 k=3
..0..0..2....0..0..0....0..0..2....0..1..0....0..0..1....0..1..1....0..0..0
..0..1..2....1..0..1....1..1..2....1..2..1....0..1..1....0..0..0....1..2..2
..0..1..0....2..0..0....0..0..1....2..1..2....1..0..0....0..0..0....2..1..2
..1..0..0....2..1..0....0..2..0....2..2..2....0..0..1....0..0..0....2..1..1
..1..2..0....0..0..1....1..0..0....1..1..1....0..0..1....0..0..1....1..2..2
CROSSREFS
Sequence in context: A078636 A083482 A290701 * A200809 A323444 A099027
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Nov 19 2011
STATUS
approved