282001

Properties

Appears in sequences

• Prime hypotenuses of Pythagorean triangles with a prime leg.at n=27A067756
• Expansion of (1 + 3*x)/(1 + 5*x + 9*x^2).at n=12A087169
• Expansion of 1/(1-x*(1-3*x)).at n=24A106852
• Primes of the form 50n^2 + 10n + 1.at n=29A154428
• a(n) = -a(n-1) - 3*a(n-2) with n>1, a(0)=0, a(1)=1.at n=25A214733
• Primes of the form (p^k + k - 1)/k for prime p and some k > 1.at n=34A230444
• Primes of the form (p^k+1)/2 where p is prime and k > 1.at n=34A308442
• Prime numbersat n=24605