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A253128 Number of length n+2 0..7 arrays with the sum of medians of adjacent triples multiplied by some arrangement of +-1 equal to zero 0
22, 1968, 4083, 98124, 570578, 7036012, 54817908, 503679532, 4023378619, 33615995160, 268926369666, 2182138427066, 17455223471532, 140332925179614 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A253129
LINKS
EXAMPLE
Some solutions for n=4
..3....0....4....0....6....0....5....5....5....6....4....1....7....3....5....6
..7....5....1....7....0....7....7....0....1....2....4....1....3....0....6....2
..6....7....0....3....3....6....6....7....1....6....4....0....1....2....7....2
..5....4....1....3....7....6....3....5....0....3....0....3....7....5....6....2
..5....1....1....6....6....2....6....2....0....7....2....5....5....4....2....3
..2....6....4....2....0....6....7....7....2....2....5....7....1....1....7....0
CROSSREFS
Sequence in context: A196948 A202885 A183488 * A046445 A133235 A114449
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 27 2014
STATUS
approved

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Last modified May 22 17:00 EDT 2024. Contains 372758 sequences. (Running on oeis4.)