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A059804
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Consider the line segment in R^n from the origin to the point v=(2,3,5,7,11,...) with prime coordinates; let d = squared distance to this line from the closest point of Z^n (excluding the endpoints). Sequence gives d times v.v.
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4
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1, 3, 9, 39, 87, 215, 391, 711, 1326, 1975, 2925, 4256, 5696, 7537, 9774, 12488, 16322, 20477, 24966, 30007, 35336, 41577, 48466, 56387, 65796, 75997, 86606, 98055, 109936, 122705, 138834, 155995, 174764, 194085, 216286, 239087, 263736, 290305
(list; graph; refs; listen; history; internal format)
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OFFSET
| 2,2
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COMMENTS
| v.v is given by A024450(n). For n >= 19, a(n) = A024450(n-1).
Officially these are just conjectures so far.
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REFERENCES
| N. J. A. Sloane and V. Vaishampayan, in preparation, 2001.
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CROSSREFS
| Cf. A059774, A024450, A047896, A060453.
Cf. A137609 (where the minimum distance occurs along the line segment).
Sequence in context: A030846 A030818 A020121 * A065657 A149026 A149027
Adjacent sequences: A059801 A059802 A059803 * A059805 A059806 A059807
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KEYWORD
| nonn,easy,nice
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com) and Vinay Vaishampayan (vinay(AT)research.att.com), Feb 21, 2001
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