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A203086 Number of (n+2)X5 binary arrays avoiding patterns 000 and 101 in rows and columns 1
621, 2237, 7558, 26528, 92748, 319956, 1110338, 3857116, 13368366, 46374172, 160928422, 558198034, 1936342232, 6717789912, 23304299530, 80843139172, 280454591492, 972921980908, 3375134923804, 11708636231942, 40618271541636 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A203091

LINKS

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

FORMULA

Empirical: a(n) = a(n-1) +2*a(n-2) +19*a(n-3) +17*a(n-4) +5*a(n-5) -57*a(n-6) -51*a(n-7) +48*a(n-8) +197*a(n-9) -63*a(n-10) -429*a(n-11) -144*a(n-12) +443*a(n-13) +246*a(n-14) -220*a(n-15) -81*a(n-16) +58*a(n-17) -65*a(n-18) +10*a(n-19) +49*a(n-20) +20*a(n-21) +20*a(n-22) for n>24

EXAMPLE

Some solutions for n=3

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

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

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

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

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

CROSSREFS

Sequence in context: A252527 A232422 A189119 * A251243 A184226 A260764

Adjacent sequences:  A203083 A203084 A203085 * A203087 A203088 A203089

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 29 2011

STATUS

approved

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Last modified July 12 21:31 EDT 2020. Contains 335669 sequences. (Running on oeis4.)