55117

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 24.at n=14A031612
• Lesser of two Pythagorean primes for which the Pythagorean triangles have the same area.at n=24A157184
• Primes of the form 8n^2 + 5.at n=21A201612
• Primes of the form 5n^2 - 8.at n=7A201789
• a(n) = 6^(4n+2) + 6^(3n+2) + 3 * 6^(2n+1) + 6^(n+1) + 1: the right Aurifeuillian factor of 6^(12n+6) + 1.at n=1A220982
• Greatest prime factor of n^9+1.at n=35A240552
• Largest prime factor of 6^n + 1.at n=18A274904
• Odd primes p with the property that gcd(ord_p q: prime q divides p-1) = 1.at n=25A295975
• Record values in A343717.at n=29A343718
• Number of mutual-visibility sets in the n-Moebius ladder.at n=12A389185
• Prime numbersat n=5602