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A208422 Number of 5Xn 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 0 1 1 vertically 1
13, 169, 611, 3835, 18395, 100113, 512525, 2702193, 14044303, 73505289, 383392451, 2003126697, 10456915209, 54611619153, 285148941623, 1489042615021, 7775302008851, 40601362677837, 212010307642445, 1107075047855985 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 5 of A208420

LINKS

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

FORMULA

Empirical: a(n) = a(n-1) +23*a(n-2) +11*a(n-3) -83*a(n-4) -21*a(n-5) +96*a(n-6) +12*a(n-7) -42*a(n-8) -2*a(n-9) +6*a(n-10)

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A262270 A207782 A207910 * A207787 A207021 A207166

Adjacent sequences:  A208419 A208420 A208421 * A208423 A208424 A208425

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 26 2012

STATUS

approved

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Last modified September 27 03:01 EDT 2022. Contains 357051 sequences. (Running on oeis4.)