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.

A294310 Integers with precisely nine partitions into sums of four squares of nonnegative numbers.

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%I A294310 #12 Oct 28 2017 11:37:18
%S A294310 90,146,166,174,185,187,205,206,207,209,219,220,221,223,231,235,251,
%T A294310 260,271,287,316,359,360,380,584,664,696,824,880,1040,1264,1440,1520,
%U A294310 2336,2656,2784,3296,3520,4160,5056,5760,6080,9344,10624,11136,13184,14080
%N A294310 Integers with precisely nine partitions into sums of four squares of nonnegative numbers.
%C A294310 A002635(a(n)) = 9.
%H A294310 Robert Price, <a href="/A294310/b294310.txt">Table of n, a(n) for n = 1..60</a>
%H A294310 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 A294310 <a href="/index/Su#ssq">Index entries for sequences related to sums of squares</a>
%t A294310 f[n_]:=Length@PowersRepresentations[n, 4, 2]; Select[Range@850, f@#==9 &] (* _Vincenzo Librandi_, Oct 28 2017 *)
%Y A294310 Cf. A001156, A002635, A006431, A025428, A180149, A245022, A294282, A294297.
%K A294310 nonn
%O A294310 1,1
%A A294310 _Robert Price_, Oct 27 2017