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A250278
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Number of length 3+1 0..n arrays with the sum of the squares of adjacent differences multiplied by some arrangement of +-1 equal to zero
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1
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8, 27, 52, 89, 140, 207, 288, 389, 504, 639, 780, 949, 1132, 1335, 1552, 1789, 2048, 2339, 2636, 2957, 3292, 3639, 4000, 4401, 4840, 5299, 5772, 6265, 6772, 7319, 7880, 8477, 9080, 9711, 10364, 11061, 11772, 12495, 13232, 14013, 14816, 15647, 16484
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=6
..4....1....4....4....2....6....5....3....5....1....2....1....1....5....6....5
..4....1....6....0....1....0....2....0....1....6....1....1....2....2....3....5
..1....1....6....4....2....6....5....3....6....1....1....3....1....6....6....6
..4....1....4....4....2....6....5....3....3....1....2....1....1....1....6....5
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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