1416317952

Appears in sequences

• a(n) = -(u^n-1)*(v^n-1) with u = 2+sqrt(3), v = 2-sqrt(3).at n=15A129743
• Continued fraction expansion for exp( Sum_{n>=1} 1/(n*A003500(n)) ), where A003500(n) = (2+sqrt(3))^n + (2-sqrt(3))^n.at n=31A174500
• Simple continued fraction expansion of an infinite product.at n=29A221075
• a(n) = a(n-1)^2 + 4 * a(n-1), with a(0) = 2.at n=4A382437
• A bisection of A221075.at n=14A389607