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A234857 Number of (n+2)X(2+2) 0..3 arrays with each 3X3 subblock having the sum of its 72 absolute element differences equal to 46 1
430044, 5514440, 71519712, 956848472, 13924547174, 200887493244, 2902392656244, 43207210308642, 637527364686626, 9385968589373782, 140138558049611020, 2079477604049608514, 30801408454016053174 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A234858

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..117

EXAMPLE

Some solutions for n=1

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

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

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

CROSSREFS

Sequence in context: A269798 A251639 A051595 * A186593 A328197 A233620

Adjacent sequences:  A234854 A234855 A234856 * A234858 A234859 A234860

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 31 2013

STATUS

approved

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Last modified May 21 21:43 EDT 2022. Contains 353929 sequences. (Running on oeis4.)