-3267

Appears in sequences

• a(n) = -(n + 1)*(2*n^2 + n - 12)/6.at n=21A058372
• Values of n such that L(7) and N(7) are both prime, where L(k) = (n^2+n+1)*2^(2*k) + (2*n+1)*2^k + 1, N(k) = (n^2+n+1)*2^k + n.at n=44A226927
• Discriminant of the pure cubic field Q(m^(1/3)), where m = A004709(n) is the n-th cubefree number.at n=9A242867