7300800

Appears in sequences

• a(n) = -(u^n-1)*(v^n-1) with u = 2+sqrt(3), v = 2-sqrt(3).at n=11A129743
• 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=23A174500
• Simple continued fraction expansion of an infinite product.at n=21A221075
• a(n) = (prime(n) - 7)^2 * (4*prime(n) - 1).at n=30A245035
• The smaller of a pair of successive powerful numbers without a nonsquarefree number between them.at n=22A371190
• A bisection of A221075.at n=10A389607