24049

Properties

Appears in sequences

• a(n) = C(n+2,3) + C(n,3) + C(n-1,3).at n=36A006004
• Numbers whose least quadratic nonresidue (A020649) is 17.at n=18A025026
• Value of D for incrementally largest values of minimal x satisfying Pell equation x^2-Dy^2=1.at n=38A033316
• Concatenation of prime p and nextprime(p) is prime -> cycles of 2 steps possible.at n=7A036339
• Primes that are each the sum of two, three, and four consecutive composite numbers.at n=30A060339
• Primes with 19 as smallest positive primitive root.at n=21A061331
• Largest prime of the set of four consecutive primes whose sum of digits is a set of four distinct primes.at n=35A106818
• Odd numbers n for which 17 is the smallest i (>= 1) with Jacobi symbol J(i,n) getting either a value 0 or -1.at n=32A112077
• Least number k such that binomial(2k,k) is divisible by all squares to n squared but not (n+1) squared, or 0 if impossible.at n=39A118562
• Expansion of g.f. (1-x^2-x^3)/((1+x+x^2)*(1-2*x-x^2-x^3+x^4)).at n=12A129441
• Primes p such that p^3-p-+1 are twin primes.at n=30A158295
• Prime numbers 3*n-2 such that n, 2*n-1 and 3*n-2 are prime.at n=37A180025
• Primes of the form 9x^2 + 6xy + 1849y^2.at n=49A244019
• Prime numbers congruent to 49 or 121 modulo 240 representable by x^2 + 960*y^2.at n=33A325090
• Value of prime number D for incrementally largest values of minimal x satisfying the equation x^2 - D*y^2 = 3.at n=22A336794
• Value of prime number D for incrementally largest values of minimal y satisfying the equation x^2 - D*y^2 = 3.at n=21A336796
• Primes of the form prime(i)*prime(i+1)+prime(i+2)*prime(i+3)+...+prime(k-1)*prime(k).at n=13A340465
• Primes having only {0, 2, 4, 9} as digits.at n=28A386048
• Prime numbersat n=2675