54839

Appears in sequences

• Numerator of n*(n-2)*(2*n-1)/(2*(n-1)).at n=29A022997
• Numerators of continued fraction convergents to sqrt(717).at n=6A042380
• Composite n coprime to 5 such that Fibonacci(n) == Legendre(n,5) (mod n).at n=17A049062
• Composite k such that Fibonacci(k) == Legendre(k,5) == 1 (mod k).at n=11A093372
• Odd composites m that divide Fibonacci(m)-1.at n=22A094394
• Odd n dividing Fibonacci(n)-1 but neither Fibonacci(n-1) nor Fibonacci(n+1).at n=2A094400
• Odd numbers k that divide Fibonacci(k) - 1 but not Fibonacci(k-1).at n=15A094409
• Denominators of the ordinary convergents of continued fraction [2/1,3/2,4/3,5/4,...].at n=10A229352