|
|
A218810
|
|
T(n,k)=Hilltop maps: number of nXk binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or antidiagonal neighbor in a random 0..3 nXk array
|
|
14
|
|
|
1, 3, 1, 7, 15, 1, 15, 61, 57, 1, 29, 249, 481, 225, 1, 57, 993, 3969, 3843, 895, 1, 113, 3969, 31741, 63499, 30719, 3551, 1, 225, 15871, 253877, 1015637, 1015887, 245509, 14089, 1, 449, 63467, 2030789, 16247233, 32496361, 16252713, 1962145, 55905, 1
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,2
|
|
COMMENTS
|
Table starts
.1........3...........7..............15..................29
.1.......15..........61.............249.................993
.1.......57.........481............3969...............31741
.1......225........3843...........63499.............1015637
.1......895.......30719.........1015887............32496361
.1.....3551......245509........16252713..........1039771513
.1....14089.....1962145.......260019585.........33269071149
.1....55905....15681787......4159932363.......1064494567893
.1...221827...125331399.....66552822351......34060123730017
.1...880191..1001668973...1064747639097....1089805494659041
.1..3492529..8005501761..17034402072321...34869985369949693
.1.13858081.63981275411.272525472991467.1115718250329709413
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=3 k=4
..0..1..1..1....1..0..1..1....1..0..1..0....1..0..0..1....1..0..0..0
..1..0..0..0....1..1..0..0....0..0..0..0....0..0..1..0....1..1..1..1
..0..1..1..0....0..0..0..1....0..1..0..0....0..0..1..1....0..1..0..1
|
|
CROSSREFS
|
|
|
KEYWORD
|
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|