cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A294282 Integers with precisely four partitions into sums of four squares of nonnegative numbers.

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%I A294282 #9 Oct 28 2017 08:25:08
%S A294282 34,36,42,45,49,57,61,63,65,67,68,69,77,78,83,87,94,107,116,119,136,
%T A294282 144,168,272,312,376,464,544,576,672,1088,1248,1504,1856,2176,2304,
%U A294282 2688,4352,4992,6016,7424,8704,9216,10752,17408,19968,24064,29696,34816,36864,43008,69632,79872,96256
%N A294282 Integers with precisely four partitions into sums of four squares of nonnegative numbers.
%C A294282 A002635(a(n)) = 4.
%H A294282 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.
%H A294282 <a href="/index/Su#ssq">Index entries for sequences related to sums of squares</a>
%t A294282 f[n_]:=Length@PowersRepresentations[n, 4, 2]; Select[Range@850, f@#==4 &] (* _Vincenzo Librandi_, Oct 28 2017 *)
%Y A294282 Cf. A002635, A006431, A180149, A245022.
%K A294282 nonn
%O A294282 1,1
%A A294282 _Robert Price_, Oct 26 2017