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Largest number with exactly n representations as a sum of seven nonnegative squares.
1

%I #14 Nov 28 2017 10:24:25

%S 3,11,15,23,24,32,35,33,39,47,48,51,56,59,55,64,62,71,68,61,80,75,83,

%T 79,78,77,96,92,95

%N Largest number with exactly n representations as a sum of seven nonnegative squares.

%C It appears that a(30) does not exist.

%D E. Grosswald, Representations of Integers as Sums of Squares. Springer-Verlag, New York, 1985, p. 86, Theorem 1.

%H D. H. Lehmer, <a href="http://www.jstor.org/stable/2305380">On the Partition of Numbers into Squares</a>, The American Mathematical Monthly, Vol. 55, No. 8, October 1948, pp. 476-481.

%Y Cf. A025422, A025431, A295669.

%K nonn,more

%O 1,1

%A _Robert Price_, Nov 27 2017