3087111

Appears in sequences

• Unique solution x of the congruence x^2 = -1 (mod m(n)), with m(n) = A002559(n) (Markoff numbers) in the interval [1, floor(m(n)/2)], assuming the Markoff uniqueness conjecture, for n >= 3.at n=50A324601
• Characteristic numbers of Markov triples in the binary tree A368546.at n=28A368134