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A299245 Number of nX4 0..1 arrays with every element equal to 0, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero. 1
1, 18, 18, 55, 192, 652, 2002, 6741, 23631, 79836, 274822, 954282, 3306096, 11462662, 39849725, 138545796, 481560761, 1674865229, 5826326576, 20267377567, 70508970351, 245315398653, 853512851244, 2969629901018, 10332484940737 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 4 of A299249.

LINKS

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

R. H. Hardin, Empirical recurrence of order 72

FORMULA

Empirical recurrence of order 72 (see link above)

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A299249.

Sequence in context: A022352 A211411 A298378 * A050686 A165839 A177014

Adjacent sequences:  A299242 A299243 A299244 * A299246 A299247 A299248

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 05 2018

STATUS

approved

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Last modified June 25 10:28 EDT 2021. Contains 345453 sequences. (Running on oeis4.)