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A194929
Number of lower triangles of an n X n 0..6 array with no element differing from any of its horizontal or vertical neighbors by more than one
1
7, 53, 899, 33255, 2698979, 480403525, 187700534197, 161035011766925, 303461593374854353, 1256322271164918861739, 11428194376171669924653051, 228444866925294986583863447811, 10035740315100401504962617899482767
OFFSET
1,1
COMMENTS
Column 6 of A194931
LINKS
EXAMPLE
Some solutions for 4X4
..4........5........2........4........5........0........2........2
..3.4......6.6......2.2......5.5......4.3......1.2......3.3......3.4
..4.4.4....5.5.5....1.1.2....5.5.5....4.4.4....2.3.3....2.3.2....3.4.4
..5.5.5.5..5.4.5.5..2.2.2.3..6.6.6.5..4.3.4.5..3.3.2.1..2.3.2.1..3.3.4.4
CROSSREFS
Sequence in context: A062207 A073564 A372939 * A317689 A116202 A203289
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 05 2011
STATUS
approved