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A330851
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The number of edges inside a cross with width 3 and height n (see Comments in A331455 for definition) formed by the straight line segments mutually connecting all vertices and all points.
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4
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108, 172, 294, 522, 848, 1352, 2046, 3032, 4260, 5958, 8048, 10806, 14082, 18070, 22778, 28646, 35314, 43436, 52676, 63370, 75290, 89330, 104908, 122816, 142476, 164644, 188954, 216686, 246584, 280386, 317186, 357658, 401138, 448884, 500014, 556706, 617160
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OFFSET
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2,1
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COMMENTS
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See the links in A331455 for images of the crosses.
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LINKS
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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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Corrected offset and a(11) and beyond from Lars Blomberg, May 31 2020
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STATUS
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approved
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