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A266078 Number of nX5 integer arrays with each element equal to the number of horizontal and vertical neighbors differing from itself by exactly one. 1
1, 1, 5, 7, 29, 29, 55, 115, 221, 443, 851, 1659, 3318, 6531, 12883, 25491, 50374, 99493, 196918, 389027, 770195, 1523153, 3012689, 5958639, 11790926, 23319020, 46141333, 91261509, 180569396, 357189221, 706693599, 1397946605, 2765830557, 5471342440 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Column 5 of A266081.

LINKS

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

EXAMPLE

Some solutions for n=4

..2..3..2..0..0....0..0..0..0..0....0..0..0..0..0....0..2..3..2..0

..3..4..3..0..0....0..0..0..0..0....0..2..3..2..0....0..3..4..3..0

..2..3..2..0..0....0..0..0..0..0....0..3..4..3..0....0..2..3..2..0

..0..0..0..0..0....0..0..0..0..0....0..2..3..2..0....0..0..0..0..0

CROSSREFS

Cf. A266081.

Sequence in context: A307100 A229337 A227857 * A147993 A213901 A087901

Adjacent sequences:  A266075 A266076 A266077 * A266079 A266080 A266081

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 20 2015

STATUS

approved

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Last modified June 14 15:19 EDT 2021. Contains 345025 sequences. (Running on oeis4.)