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A249084
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Number of length n+5 0..7 arrays with every six consecutive terms having two times the sum of some two elements equal to the sum of the remaining four
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1
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78448, 202628, 525960, 1365188, 3535850, 9128450, 23480326, 61940694, 162995818, 427723930, 1118943674, 2917379528, 7579080652, 20132662668, 53324358248, 140801592674, 370556680666, 971794433086, 2539113787424, 6770428097170
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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=1
..6....3....6....7....3....6....6....1....5....1....2....6....0....1....6....2
..0....1....0....6....1....3....5....3....2....5....2....5....0....7....7....7
..1....7....0....4....5....4....5....4....2....2....2....2....2....0....3....6
..1....2....0....5....6....1....2....0....7....5....6....5....0....3....6....0
..5....5....5....1....6....4....4....3....2....3....1....0....1....7....3....0
..5....6....7....1....0....6....2....1....6....5....5....3....0....6....2....3
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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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