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A194928
Number of lower triangles of an n X n 0..5 array with no element differing from any of its horizontal or vertical neighbors by more than one
1
6, 44, 728, 26316, 2089736, 364130672, 139323386328, 117075649276412, 216113470259526948, 876452156097264185188, 7810016810149997712089700, 152927733637636192107728580088, 6580461097392848372314889891440304
OFFSET
1,1
COMMENTS
Column 5 of A194931
LINKS
EXAMPLE
Some solutions for 4X4
..3........2........1........4........5........4........3........2
..4.4......1.2......2.1......3.2......4.4......5.4......4.3......1.1
..4.3.2....1.1.0....3.2.2....3.2.3....5.5.5....4.3.3....3.3.2....0.1.0
..3.2.1.1..1.0.0.0..2.1.1.1..3.3.3.2..4.4.4.3..4.3.4.5..4.3.3.4..1.0.0.0
CROSSREFS
Sequence in context: A352843 A284218 A295978 * A267074 A271963 A065783
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 05 2011
STATUS
approved