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A233641 Number of (n+1) X (5+1) 0..2 arrays with every 2 X 2 subblock having the sum of the squares of the edge differences equal to 2. 1
4320, 99380, 2118568, 48384788, 1060656512, 24003655980, 531400908604, 11957878063196, 265950544067684, 5965795563741028, 132995605031840160, 2978341581135279648, 66478181781268446932, 1487401749339915136108 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A233644.
LINKS
FORMULA
Empirical recurrence of order 66 (see link above).
EXAMPLE
Some solutions for n=2
..1..0..0..0..1..2....2..1..2..2..2..1....2..1..0..0..1..2....1..1..0..1..1..1
..1..1..1..1..1..1....1..1..1..2..1..1....1..1..1..1..1..1....1..0..0..0..0..0
..2..1..2..1..0..0....2..2..2..2..2..1....1..2..1..2..1..0....1..1..1..1..1..0
CROSSREFS
Cf. A233644.
Sequence in context: A145312 A008409 A320729 * A202787 A028384 A107542
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 14 2013
STATUS
approved

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Last modified March 3 19:50 EST 2024. Contains 370512 sequences. (Running on oeis4.)