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Squared radii of the spheres around (0,0,0) that contain record numbers of lattice points.
5

%I #18 Aug 14 2021 15:39:19

%S 1,2,5,9,14,26,41,74,89,101,146,194,269,314,341,446,614,626,689,794,

%T 854,941,1106,1109,1154,1286,1361,1634,1781,1889,2141,2609,2966,3134,

%U 3401,3449,3506,4241,4289,4826,5381,5561,6254,7229,7829,8069,8126

%N Squared radii of the spheres around (0,0,0) that contain record numbers of lattice points.

%C The number of lattice points (i,j,k) on the sphere around (0,0,0) with i^2 + j^2 + k^2 = a(n) is given by A071611(n).

%C Indices of records in A005875. - _Daniel Suteu_, Aug 13 2021

%H Hugo Pfoertner, <a href="/A071609/b071609.txt">Table of n, a(n) for n = 1..189</a>

%Y Cf. A005875, A071342, A071343, A071344, A071610, A071611.

%K nonn

%O 1,2

%A _Hugo Pfoertner_, May 25 2002