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A218592
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..2 nXk array
13
1, 3, 1, 7, 13, 1, 13, 57, 49, 1, 25, 225, 449, 191, 1, 49, 895, 3565, 3567, 737, 1, 97, 3565, 28325, 56629, 28305, 2849, 1, 191, 14189, 225647, 898763, 900213, 224643, 11011, 1, 375, 56489, 1798967, 14313773, 28543403, 14309253, 1782855, 42557, 1, 737, 224891
OFFSET
1,2
COMMENTS
Table starts
.1.......3...........7..............13.................25
.1......13..........57.............225................895
.1......49.........449............3565..............28325
.1.....191........3567...........56629.............898763
.1.....737.......28305..........900213...........28543403
.1....2849......224643........14309253..........906390787
.1...11011.....1782855.......227451273........28782653703
.1...42557....14149449......3615431533.......913998678577
.1..164481...112295673.....57468767413.....29024205558587
.1..635711...891223263....913489632033....921669292406117
.1.2456993..7073103393..14520292432269..29267787550042425
.1.9496161.56134970523.230806004700461.929404283528404253
LINKS
EXAMPLE
Some solutions for n=3 k=4
..0..1..1..0....0..0..1..0....0..1..0..1....0..0..0..0....1..1..1..0
..1..0..0..1....1..0..0..1....1..1..1..1....1..0..0..1....0..0..0..0
..1..0..1..1....0..0..0..0....0..1..1..0....0..0..0..0....1..0..0..1
CROSSREFS
Column 2 is A218420
Row 1 is A218199
Sequence in context: A196845 A263446 A297192 * A113647 A370381 A161380
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Nov 03 2012
STATUS
approved