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 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 R. H. Hardin, Table of n, a(n) for n = 1..159 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 Row 1 is A218189 Sequence in context: A322069 A194595 A219063 * A218638 A232295 A228763 Adjacent sequences:  A218807 A218808 A218809 * A218811 A218812 A218813 KEYWORD nonn,tabl AUTHOR R. H. Hardin Nov 06 2012 STATUS approved

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Last modified May 17 08:05 EDT 2022. Contains 353741 sequences. (Running on oeis4.)