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A297510 Number of 5Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 2 neighboring 1s. 1
1, 280, 2534, 14201, 270845, 3624914, 35049871, 431068698, 5534003000, 63359116756, 744028146659, 9066464960896, 107792105015031, 1274517673890830, 15252160661225132, 182090112172787219, 2165329133215506254 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 5 of A297506.

LINKS

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

R. H. Hardin, Empirical recurrence of order 59

FORMULA

Empirical recurrence of order 59 (see link above)

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Cf. A297506.

Sequence in context: A272982 A234458 A234452 * A327948 A187384 A297724

Adjacent sequences:  A297507 A297508 A297509 * A297511 A297512 A297513

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 31 2017

STATUS

approved

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Last modified January 15 13:34 EST 2021. Contains 340187 sequences. (Running on oeis4.)