login
A222587
T(n,k)=Number of nXk 0..2 arrays with no more than floor(nXk/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..2 order
5
1, 1, 1, 1, 1, 1, 4, 5, 5, 4, 5, 18, 9, 18, 5, 14, 59, 112, 112, 59, 14, 17, 200, 426, 1087, 426, 200, 17, 70, 820, 4790, 11442, 11442, 4790, 820, 70, 89, 3014, 18007, 128213, 111951, 128213, 18007, 3014, 89, 326, 11364, 208768, 1471412, 3778560, 3778560, 1471412
OFFSET
1,7
COMMENTS
Table starts
....1......1.........1...........4............5............14.............17
....1......1.........5..........18...........59...........200............820
....1......5.........9.........112..........426..........4790..........18007
....4.....18.......112........1087........11442........128213........1471412
....5.....59.......426.......11442.......111951.......3778560.......41768676
...14....200......4790......128213......3778560.....120603073.....4091063379
...17....820.....18007.....1471412.....41768676....4091063379...133111379646
...70...3014....208768....17068476...1506610325..143156705294.14368353140562
...89..11364....783389...198654710..17357088679.5118550268413
..326..42748...9222742..2328829654.636943229353
..413.164652..34725955.27335961632
.1630.627034.412489970
LINKS
EXAMPLE
Some solutions for n=3 k=4
..0..0..1..2....0..1..1..1....0..1..1..1....0..1..1..1....0..1..0..0
..0..0..0..1....1..1..1..1....1..1..1..1....0..1..1..1....2..0..0..0
..0..0..0..0....1..1..1..1....0..1..1..1....2..1..1..1....0..0..0..0
CROSSREFS
Column 1 is A222364
Column 2 is A222567
Sequence in context: A106626 A280191 A222703 * A222378 A360853 A094848
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 25 2013
STATUS
approved