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A250424 Number of length 7+1 0..n arrays with the sum of the minimum of each adjacent pair multiplied by some arrangement of +-1 equal to zero 1
136, 3069, 29221, 169352, 713260, 2399000, 6847916, 17247435, 39349946, 82830804, 163171880, 303974701, 539955055, 920393391, 1513595984, 2411810686, 3737466811, 5649538780, 8351938843, 12101749148, 17220184737, 24102352508 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 7 of A250419
LINKS
EXAMPLE
Some solutions for n=4
..0....3....3....4....2....3....2....1....0....1....3....0....2....1....3....4
..0....1....1....0....2....1....2....0....0....0....0....1....2....1....1....0
..3....3....2....2....3....1....1....1....2....2....3....4....0....1....3....2
..0....2....2....0....0....1....3....4....2....3....1....0....4....4....0....2
..0....0....0....4....1....0....1....1....2....4....2....1....4....2....1....4
..2....4....1....4....3....0....4....1....1....4....2....0....1....0....2....2
..0....3....0....3....4....1....4....3....4....3....0....1....3....4....4....2
..1....1....1....1....2....4....0....2....2....2....0....1....2....3....1....0
CROSSREFS
Sequence in context: A072897 A254703 A333110 * A251940 A071231 A233102
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 22 2014
STATUS
approved

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Last modified March 28 04:13 EDT 2024. Contains 371235 sequences. (Running on oeis4.)