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A297311 Number of nX5 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 1 or 2 neighboring 1s. 1
12, 207, 2577, 35476, 484808, 6623719, 90535227, 1237278512, 16909630099, 231098841942, 3158359335337, 43164380571143, 589914903106589, 8062194454707849, 110183650123040906, 1505847685192695964 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A297314.

LINKS

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

FORMULA

Empirical: a(n) = 6*a(n-1) +91*a(n-2) +215*a(n-3) -317*a(n-4) -733*a(n-5) +1104*a(n-6) -40*a(n-7) -1643*a(n-8) +1667*a(n-9) -589*a(n-10) +69*a(n-11) -a(n-12) for n>14

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A297314.

Sequence in context: A051688 A198529 A151590 * A217703 A245911 A127909

Adjacent sequences:  A297308 A297309 A297310 * A297312 A297313 A297314

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 28 2017

STATUS

approved

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Last modified December 4 02:40 EST 2021. Contains 349469 sequences. (Running on oeis4.)