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A316835 Sums of four distinct positive even squares. 1

%I #8 May 21 2019 14:39:39

%S 120,156,184,200,204,216,228,248,252,260,264,280,284,296,300,312,316,

%T 324,336,340,344,348,360,364,372,376,380,392,396,408,420,424,428,436,

%U 440,444,452,456,464,468,472,476,480,484,488,492,500,504,508,516,520,524,532,536,540,548,552

%N Sums of four distinct positive even squares.

%D Michael D. Hirschhorn, The Power of q: A Personal Journey, Springer 2017. See Chapter 31.

%t Total/@Subsets[(2*Range[10])^2,{4}]//Union (* _Harvey P. Dale_, May 21 2019 *)

%Y Equals 4*A004433. Cf. A316833, A316834.

%K nonn

%O 1,1

%A _N. J. A. Sloane_, Jul 19 2018

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Last modified March 29 09:59 EDT 2024. Contains 371268 sequences. (Running on oeis4.)