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A302462 Number of 4Xn 0..1 arrays with every element equal to 0, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1
8, 3, 55, 10, 233, 123, 1518, 2945, 16711, 58462, 256863, 1039347, 4337252, 17926079, 74303683, 307706930, 1274892369, 5281342547, 21882023418, 90662172089, 375642965369, 1556440391546, 6448902902619, 26720451492533, 110713137717160 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 4 of A302460.

LINKS

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

R. H. Hardin, Empirical recurrence of order 71

FORMULA

Empirical recurrence of order 71 (see link above)

EXAMPLE

Some solutions for n=5

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

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

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

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

CROSSREFS

Cf. A302460.

Sequence in context: A286034 A256046 A197245 * A303244 A038281 A302370

Adjacent sequences:  A302459 A302460 A302461 * A302463 A302464 A302465

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 08 2018

STATUS

approved

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Last modified September 25 12:38 EDT 2021. Contains 347654 sequences. (Running on oeis4.)