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A204730 Number of (n+1)X7 0..4 arrays with the permanents of all 2X2 subblocks equal and nonzero 1
171860, 10332706, 108530190, 6063334774, 72313926190, 3923500974342, 49973876676266, 2620184692100666, 35147734420956234, 1772864559414767572, 24904244389253270250, 1207168595561106330152, 17696904425164366165232 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A204732

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..44

EXAMPLE

Some solutions for n=4

..4..3..0..3..4..4..4....0..2..1..1..0..1..0....1..2..3..3..2..3..3

..4..0..4..3..0..3..0....1..0..1..1..2..0..2....4..1..3..0..3..0..3

..0..3..0..3..4..2..4....4..2..1..1..0..1..0....1..2..3..3..0..3..2

..4..3..4..0..4..1..4....1..0..1..1..2..0..2....3..3..0..3..3..3..1

..4..0..4..3..4..2..4....3..2..1..1..0..1..0....0..3..3..0..3..0..3

CROSSREFS

Sequence in context: A236498 A246227 A206115 * A049053 A242980 A221742

Adjacent sequences:  A204727 A204728 A204729 * A204731 A204732 A204733

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 18 2012

STATUS

approved

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Last modified September 18 04:22 EDT 2021. Contains 347508 sequences. (Running on oeis4.)