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A071343
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a(n) = least positive r <= n, such that the origin-centered sphere of radius sqrt(r) touches A071342(n) lattice points.
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2
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1, 2, 9, 14, 14, 26, 41, 41, 74, 89, 101, 101, 146, 194, 194, 194, 269, 314, 341, 341, 341, 446, 446, 446, 614, 626, 689, 689, 794, 854, 941, 941, 941, 1154, 1154, 1286, 1361, 1361, 1361, 1361, 1634, 1634, 1781, 1889, 1889, 1889, 2141, 2141
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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EXAMPLE
| a(5)=14 because the smallest sphere to touch A071342(5)=48 points has radius sqrt(14).
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PROG
| (FORTRAN) See A071339.
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CROSSREFS
| Cf. A071339, A071340, A071341, A071342, A071343, A071344, A071345, A071346, A071347. A071609.
Sequence in context: A178688 A163735 A144472 * A043401 A045920 A071344
Adjacent sequences: A071340 A071341 A071342 * A071344 A071345 A071346
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KEYWORD
| easy,nonn
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AUTHOR
| Hugo Pfoertner (hugo(AT)pfoertner.org), May 22 2002
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EXTENSIONS
| Edited by Don Reble (djr(AT)nk.ca), Nov 06 2005
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