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 A071344 a(n) = greatest positive r <= n, such that the origin-centered sphere of radius sqrt(r) touches A071342(n) lattice points. 4
 1, 2, 9, 14, 21, 29, 41, 62, 74, 89, 101, 134, 161, 194, 209, 230, 269, 314, 341, 374, 425, 446, 521, 569, 614, 629, 689, 761, 794, 866, 941, 941, 941, 1154, 1154, 1286, 1361, 1361, 1454, 1454, 1634, 1634, 1781, 1889, 1889, 2054, 2141, 2246, 2246 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS EXAMPLE a(4)=21 because the largest sphere with radius <= 4 to touch A071342(4)=48 points has radius sqrt(21). PROG (FORTRAN) See A071339. CROSSREFS Cf. A071339-A071347. Sequence in context: A304807 A045920 A242466 * A224855 A254608 A324275 Adjacent sequences:  A071341 A071342 A071343 * A071345 A071346 A071347 KEYWORD easy,nonn AUTHOR Hugo Pfoertner, May 22 2002 EXTENSIONS Edited by Don Reble, Nov 06 2005 STATUS approved

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Last modified June 23 04:15 EDT 2021. Contains 345395 sequences. (Running on oeis4.)