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A218589 Hilltop maps: number of nX5 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or antidiagonal neighbor in a random 0..2 nX5 array 1
25, 895, 28325, 898763, 28543403, 906390787, 28782653703, 913998678577, 29024205558587, 921669292406117, 29267787550042425, 929404283528404253, 29513413706384880845, 937204189864632464075, 29761101248357058984601 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A218592

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

FORMULA

Empirical: a(n) = 24*a(n-1) +208*a(n-2) +1118*a(n-3) +2907*a(n-4) +5536*a(n-5) +5083*a(n-6) +5846*a(n-7) -1439*a(n-8) +240*a(n-9) +351*a(n-10) -86*a(n-11) -1083*a(n-12) -56*a(n-13) +5*a(n-14) -238*a(n-15) -15*a(n-18) for n>19

EXAMPLE

Some solutions for n=3

..0..1..1..0..0....0..0..0..0..0....1..0..0..1..0....0..0..1..1..0

..0..1..1..1..0....1..1..0..1..1....0..1..1..0..0....0..1..0..1..0

..0..1..1..0..0....0..1..1..0..0....1..1..0..0..1....1..1..0..0..1

CROSSREFS

Sequence in context: A209119 A224478 A159332 * A264006 A218203 A319492

Adjacent sequences:  A218586 A218587 A218588 * A218590 A218591 A218592

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 03 2012

STATUS

approved

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Last modified November 18 19:48 EST 2019. Contains 329288 sequences. (Running on oeis4.)