-3078

Appears in sequences

• First differences of A158916.at n=11A158926
• Alternating sum of 12-gonal (or dodecagonal) numbers.at n=35A266088
• Expansion of f(-x, -x^5)^2 / (f(x^2, x^10) * f(x^6, x^18)) in powers of x where f(, ) is Ramanujan's general theta function.at n=57A283023
• a(n) = a(n-2) - 2a(n-3) + a(n-4) for n>3, with a(0)=2, a(1)=0, a(2)=1, a(3)=-1, a sequence related to Pellian numbers.at n=19A292521
• a(n) = n^3 * Sum_{d|n} (-1)^(n/d + 1) * mu(d) / d^3.at n=13A338548