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 A087417 #8 Jan 29 2015 22:10:37
%S A087417 -1,0,0,1,2,10,135,19818,395466722,156401766357161409,
%T A087417 24461512581491800525933058683030176
%N A087417 Sum of the cubes of A058182.
%C A087417 The sequence A058182=b(n) has the property: b(1)^3+b(2)^3+b(3)^3+...b(n)^3=b(n)*b(n+1)
%F A087417 a(n+1) = a(n) + A058182(n)^3, a(-n) = a(n) for all n in Z.
%e A087417 A058182 begins 1,1,2,5,27,734,538783...=b(n)
%e A087417 1^3+1^3=2=a(2)=1*2=b(2)*b(3).
%e A087417 1^3+1^3+2^3=10=a(3)=2*5=b(3)*b(4).
%e A087417 1^3+1^3+2^3+5^3=135=a(4)=5*27=b(4)*b(5).
%e A087417 1^3+1^3+2^3+5^3+27^3=19818=a(5)=b(5)*b(6).
%o A087417 (PARI) {a(n) = local(a0, a1, a2); if( n<0, a(-n), if( n<3, -(n==0), a0 = a1 = 1; for(i=4, n, a2 = a1^2 + a0; a0 = a1; a1 = a2); a1*a0))}; /* _Michael Somos_, May 22 2005 */
%Y A087417 Cf. A058182.
%K A087417 sign
%O A087417 0,5
%A A087417 _Miklos Kristof_, Oct 22 2003