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A250322 Number of length 3+2 0..n arrays with the sum of second differences squared multiplied by some arrangement of +-1 equal to zero 1
8, 41, 104, 233, 436, 745, 1152, 1733, 2460, 3441, 4612, 6073, 7752, 9789, 12108, 14837, 17916, 21489, 25444, 30013, 34996, 40621, 46736, 53569, 60892, 68973, 77660, 87237, 97468, 108653, 120596, 133561, 147300, 162157, 177824, 194673, 212388 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 3 of A250320
LINKS
EXAMPLE
Some solutions for n=6
..6....5....6....2....3....0....4....3....1....2....1....1....0....6....1....2
..1....5....0....0....6....3....1....6....2....3....1....1....3....4....3....3
..3....5....3....2....3....6....1....6....2....4....1....5....4....5....5....4
..5....0....6....1....0....5....1....6....3....3....4....4....5....6....0....0
..0....0....0....5....3....0....4....3....4....0....4....6....4....4....2....1
CROSSREFS
Sequence in context: A120646 A041116 A326286 * A135797 A171714 A342034
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 18 2014
STATUS
approved

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Last modified May 30 18:38 EDT 2024. Contains 372971 sequences. (Running on oeis4.)