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A077056
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Total number of "humps" in all A005316(2n) open meanders with 2n crossings.
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2
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1, 1, 4, 22, 140, 992, 7584, 61420, 520320, 4570292, 41354416, 383609434, 3634231140, 35059333218, 343580813492, 3413862553800, 34336784362232, 349131316634164, 3584622273967324, 37128374058146138, 387630493693010928
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OFFSET
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0,3
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COMMENTS
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A "hump" is a local maxima of the upper envelope of the part of the meander that extends above the East-West road.
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LINKS
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EXAMPLE
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The three open meanders with 4 crossings have respectively 2, 1 and 1 humps, so a(2) = 4.
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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