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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 (list; table; graph; refs; listen; history; text; internal format)
 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 R. H. Hardin, Table of n, a(n) for n = 1..178 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 A161380 A257852 Adjacent sequences:  A218589 A218590 A218591 * A218593 A218594 A218595 KEYWORD nonn,tabl AUTHOR R. H. Hardin Nov 03 2012 STATUS approved

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Last modified December 9 08:41 EST 2021. Contains 349627 sequences. (Running on oeis4.)