191965

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 79.at n=2A031667
• E.g..f. A(x) satisfies: 1 = ...(((( A(x) - a(2)*x )^2 - a(3)*x^2 )^3 - a(4)*x^3 )^4 - a(5)*x^4 )^5 -..., with a(0) = a(1) = 1.at n=10A277039