47743

Properties

Appears in sequences

• Primes p such that positive values of p - A002110(k) are all primes for k > 0.at n=22A068374
• prime(k) for those k where floor((2*(prime(k+1)-prime(k))*PrimePi(k) mod (8*k))/k) = m with m = 9.at n=37A109563
• Primes p such that q-p = 34, where q is the next prime after p.at n=14A134116
• A007318 * A002110; a(n) = Sum_{k=0..n} binomial(n,k)*A002110(k).at n=6A136104
• Noncomposite numbers in the southwestern ray of the Ulam spiral as oriented on the March 1964 cover of Scientific American.at n=27A168026
• Primes of the form n^2 + n + 1, where n is semiprime.at n=21A193144
• Primes having only {3, 4, 7} as digits.at n=39A199347
• Primes p with prime(p)^3 + 2*p^3 and p^3 + 2*prime(p)^3 both prime.at n=20A236574
• Square array A(row,col) = Sum_{k=0..row} binomial(row,k)*A002110(col+k), read by descending antidiagonals as A(0,0), A(0,1), A(1,0), A(0,2), A(1,1), A(2,0), ...at n=27A276586
• Transpose of square array A276586.at n=21A276587
• Brazilian primes that are also the greater of a pair of twin primes.at n=31A306889
• Primes having Fibonacci prime gaps to both neighbor primes.at n=10A353135
• Twin primes p such that 6p+1, 6p-1 is a twin prime pair.at n=42A386724
• Prime numbersat n=4923