50131

Properties

Appears in sequences

• Prime number spiral (clockwise, East spoke).at n=36A054555
• a(n) = 2a(n-1)+a(n-3)+1 with a(1)=1, a(2)=3, a(3)=8.at n=13A117080
• Primes where the first digit equals the sum of all the other digits.at n=31A156307
• G.f.: exp( Sum_{n>=1} A005063(n)*x^n/n ), where A005063(n) = sum of squares of primes dividing n.at n=28A219224
• Primes whose digits add to 10 and which have a 3 in the tens place.at n=18A227825
• Primes that are exactly between the nearest square and the nearest triangular number.at n=23A233443
• Values of odd prime numbers, D, for incrementally largest values of minimal x satisfying the equation x^2 - D*y^2 = -2.at n=41A336790
• Values of odd prime numbers, D, for incrementally largest values of minimal positive y satisfying the equation x^2 - D*y^2 = -2.at n=40A336792
• Prime numbersat n=5149