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.
%I A294103 #11 Feb 10 2018 21:58:12
%S A294103 0,2,4,12,4,24,20,54,40,72,70,114,62,116,62,182,126,292,134,330,182,
%T A294103 412,190,460,202,468,380,518,490,632,462,692,458,890,562,1184,638,
%U A294103 1088,590,1206,590,1430,678,1556,986,1578,952,1772,1032,1876,1214,1986,1326
%N A294103 Sum of the differences of the larger and smaller parts in the partitions of 2n into two squarefree parts or two nonsquarefree parts.
%H A294103 <a href="/index/Par#part">Index entries for sequences related to partitions</a>
%F A294103 a(n) = 2 * Sum_{i=1..n} (n - i) * [A008966(i) = A008966(2n-i)], where [] is the Iverson bracket.
%t A294103 Table[2 Sum[(n - k) KroneckerDelta[MoebiusMu[k]^2, MoebiusMu[2 n - k]^2], {k, n}], {n, 80}]
%Y A294103 Cf. A008966, A294097.
%K A294103 nonn,easy
%O A294103 1,2
%A A294103 _Wesley Ivan Hurt_, Oct 22 2017