84389

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 34.at n=8A031622
• Denominators of continued fraction convergents to sqrt(293).at n=8A041551
• a(n) = n^4 + 3*n^2 + 1.at n=17A057721
• Numbers generated by the Fibonacci polynomial x^4 + 3x^2 + 1.at n=16A085151
• Primes p of the form k*(k + 1) - 1 such that p and p + 2 are twin primes.at n=34A088486
• First differences of Chebyshev polynomials S(n,291) = A098248(n) with Diophantine property.at n=2A098250
• a(n) = 17*a(n-1) + a(n-2), with a(-1) = 0 and a(0) = 1.at n=5A178765
• Primes p such that q^2 - p^2 + 1 is the square of a composite number where p and q are consecutive primes.at n=48A316934
• Prime numbersat n=8224