144169

Properties

Appears in sequences

• Numbers whose least quadratic nonresidue (A020649) is 23.at n=20A025028
• Primes which are the concatenation of two consecutive square numbers.at n=1A104242
• Odd numbers k for which 23 is the smallest positive i with Jacobi symbol J(i,k) != 1.at n=27A112079
• n^2 concatenated with (n+1)^2.at n=12A246973
• Primes p such that the maximal length of a Buchi sequence in Z/pZ is less than the value of A124882 for that prime.at n=14A261404
• Primes p such that 2*p + 31 is a square.at n=29A269786
• Value of prime number D for incrementally largest values of minimal y satisfying the equation x^2 - D*y^2 = -3.at n=34A341077
• G.f. A(x) satisfies: A(x) = 1 / ((1 + x) * (1 - x * A(x)^4)).at n=9A349300
• Expansion of (1+2*x+x^2) / (1-x-5*x^2-2*x^3).at n=11A384648
• Primes p that set records for the minimum k in the Erdős-Straus y = k*p construction for 4/p = 1/x + 1/y + 1/z.at n=7A392469
• Prime numbersat n=13355