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A185607 Number of (n+1)X4 0..3 arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant 1
2366, 172026, 4473352, 173403770, 5539941616, 195867482580, 6595709318618, 227666412255534, 7763071689162734, 266351559937007588, 9110713339567481710, 312120282081615187852, 10684624737086835808560, 365902084298071259519514 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A185609

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..53

EXAMPLE

Some solutions for 3X4

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

..0..0..0..0....0..0..0..0....0..0..0..0....0..0..2..2....0..0..0..0

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

CROSSREFS

Sequence in context: A187238 A247923 A186785 * A068282 A234328 A258520

Adjacent sequences:  A185604 A185605 A185606 * A185608 A185609 A185610

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 31 2011

STATUS

approved

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Last modified October 18 17:00 EDT 2021. Contains 348068 sequences. (Running on oeis4.)