201247

Properties

Appears in sequences

• Primes prime(k) such that prime(k) + 2*prime(k+1), prime(k) + 2*prime(k+1) + 4*prime(k+2) and prime(k) + 2*prime(k+1) + 4*prime(k+2) + 8*prime(k+3) are all prime.at n=21A337214
• Numerators of the partial sums of the reciprocals of Pillai's arithmetical function (A018804).at n=9A379363
• Prime numbersat n=18081