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A205922 Number of (n+1)X5 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one, and every 2X2 determinant nonzero 1
9144, 104311, 583542, 7177505, 40724536, 535691452, 3047588270, 42247423238, 240169745414, 3447138724818, 19567338424076, 286774605083392, 1625846521511432, 24111794299224170, 136592525133890114 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A205926

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A251376 A253031 A093213 * A256766 A210140 A232759

Adjacent sequences:  A205919 A205920 A205921 * A205923 A205924 A205925

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 01 2012

STATUS

approved

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Last modified January 23 22:46 EST 2022. Contains 350515 sequences. (Running on oeis4.)