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A297977 Number of nX7 0..1 arrays with every element equal to 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero. 1
0, 104, 2410, 60427, 3565760, 160132152, 7833283900, 380347270776, 18479502350618, 900718473284558, 43858541975987311, 2137007759512119065, 104116892327060952223, 5072908488571026582866, 247172021246746231328931 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 7 of A297978.

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A297978.

Sequence in context: A186931 A273224 A092714 * A298840 A298628 A281536

Adjacent sequences:  A297974 A297975 A297976 * A297978 A297979 A297980

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 10 2018

STATUS

approved

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Last modified November 30 17:31 EST 2020. Contains 338807 sequences. (Running on oeis4.)