57649

Properties

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 68.at n=1A031656
• The smallest A(m) such that the interval (A(m)*n, A(m+1)*n) contains exactly one element of A, where A is the sequence of primes p for which p-2 is not prime.at n=27A201828
• Expansion of x^4*(1-3*x^2-x^3)/((1+x)*(1-2*x)*(1-x-2*x^2)).at n=19A219755
• Number of length-5 0..n arrays with no repeated value differing from the previous repeated value by more than one.at n=7A269585
• Prime numbersat n=5839