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A222744
Number of nX5 0..3 arrays with exactly floor(nX5/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order
1
20, 7546, 6363724, 5989744766, 4906560167364, 4777709698876890, 4001484076145095954, 4007703500495273447052, 3396887706615718195456805, 3458279283218841589487839312, 2953874525277026876992243827814
OFFSET
1,1
COMMENTS
Column 5 of A222747
LINKS
EXAMPLE
Some solutions for n=3
..0..0..0..1..2....0..0..0..0..1....0..0..0..1..2....0..0..0..0..1
..0..1..3..0..1....1..0..2..3..3....1..1..0..3..0....1..2..2..0..3
..3..1..2..2..2....3..0..1..2..1....3..3..2..1..2....0..2..3..2..1
CROSSREFS
Sequence in context: A135292 A222721 A223051 * A234459 A013725 A307914
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 04 2013
STATUS
approved