-1086
domain: Z
Appears in sequences
- a(n) = Sum[d|n, d==1 (mod 3), d^2] - Sum[d|n, d==2 (mod 3), d^2].at n=37A103440
- Sequence is {a(4,n)}, where a(m,n) is defined at sequence A110665.at n=18A110669
- Expansion of (b(q^3)^3 - b(q)^3) / 9 in powers of q where b() is a cubic AGM theta function.at n=37A181905
- Expansion of b(q) * c(q^3)^2 / 9 in powers of q where b(), c() are cubic AGM theta functions.at n=55A181977
- Imbalance of the sum of parts of all partitions of n.at n=17A194797
- G.f.: Sum_{n=-oo..+oo} x^(n^2) / (1 - x^n)^n.at n=54A261605
- a(n) = Sum_{d|n} (-1)^(d-1)*d^2.at n=37A321543