7722793

Appears in sequences

• Denominators of continued fraction convergents to sqrt(50).at n=6A041085
• Denominators of continued fraction convergents to sqrt(200).at n=6A041371
• Denominators of continued fraction convergents to sqrt(450).at n=14A041857
• Denominators of continued fraction convergents to sqrt(800).at n=14A042543
• Pell equation solutions (7*b(n))^2 - 2*(5*a(n))^2 = -1 with b(n) = A097732(n), n >= 0. Note that D = 50 = 2*5^2 is not squarefree.at n=3A097733
• Square array A(n,k), n>=0, k>=0, read by antidiagonals downwards, where column k is the expansion of g.f. x/(1 - A002203(k)*x + (-1)^k*x^2).at n=62A383742