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.

A293175 Integers with precisely six partitions into sums of four squares of nonnegative numbers.

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%I A293175 #17 Oct 27 2017 20:23:53
%S A293175 66,81,97,99,105,110,115,121,123,124,137,139,141,149,155,156,158,159,
%T A293175 164,179,188,239,264,284,440,496,624,632,656,752,1056,1136,1760,1984,
%U A293175 2496,2528,2624,3008,4224,4544,7040,7936,9984,10112,10496,12032,16896,18176
%N A293175 Integers with precisely six partitions into sums of four squares of nonnegative numbers.
%C A293175 A002635(a(n)) = 6.
%H A293175 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 A293175 <a href="/index/Su#ssq">Index entries for sequences related to sums of squares</a>
%t A293175 f[n_] := Length@ PowersRepresentations[n, 4, 2]; Select[ Range@ 19000, f@# == 6 &] (* _Robert G. Wilson v_, Oct 27 2017 *)
%Y A293175 Cf. A001156, A002635, A006431, A025428, A180149, A245022, A294282, A294297.
%K A293175 nonn
%O A293175 1,1
%A A293175 _Robert Price_, Oct 27 2017