-12010

Appears in sequences

• a(n) = 3^n + (4^n - 3^n) * (d(n) - 3), where d(n) = A000005(n).at n=6A231919
• Coefficient of x^3 in the minimal polynomial of the continued fraction [1^n,sqrt(6),1,1,...], where 1^n means n ones.at n=4A266807