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A185518 Number of (n+1)X7 0..2 arrays with every 2X2 subblock singular 1
46303, 9856209, 541370505, 65652458491, 5157904182519, 525819969687473, 46861672135881249, 4536327635584899147, 421714260065729709743, 40230435280135273840049, 3792362066556802880530649 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A185521

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..200

EXAMPLE

Some solutions for 3X7

..0..0..0..0..0..0..2....0..0..2..1..0..0..1....0..0..2..2..0..1..0

..0..2..0..1..2..0..2....0..0..0..0..0..0..0....0..0..0..0..0..0..0

..0..0..0..1..2..0..2....0..0..0..0..0..1..0....0..0..1..2..1..1..0

CROSSREFS

Sequence in context: A190882 A251278 A202897 * A230237 A175170 A204495

Adjacent sequences:  A185515 A185516 A185517 * A185519 A185520 A185521

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 29 2011

STATUS

approved

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Last modified October 16 15:08 EDT 2021. Contains 348042 sequences. (Running on oeis4.)