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A226714 Number of nX5 (-1,0,1) arrays of determinants of 2X2 subblocks of some (n+1)X6 binary array 1
181, 13691, 539703, 20577215, 833949273, 34404755041, 1412775737517, 57827217804729, 2366890987279579, 96919708660909729, 3969044355415426525, 162532913694902119493, 6655600103815564563993, 272542304676407531357487 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A226717

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..38

EXAMPLE

Some solutions for n=3

.-1.-1..1..1.-1...-1..0..0..0..1...-1..0..0..0..1...-1..0.-1..0..1

..1..1.-1.-1..1....1..0.-1..0.-1....0..0..1.-1..0....1..0..1..0..0

.-1..0..0..1.-1...-1..1..0.-1..1....0..1..0.-1..1....0..0.-1..1..0

CROSSREFS

Sequence in context: A262141 A212938 A070250 * A083979 A179408 A224991

Adjacent sequences:  A226711 A226712 A226713 * A226715 A226716 A226717

KEYWORD

nonn

AUTHOR

R. H. Hardin Jun 15 2013

STATUS

approved

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Last modified April 7 15:03 EDT 2020. Contains 333305 sequences. (Running on oeis4.)