145177

Properties

Appears in sequences

• Primes that can be written in binary representation as concatenation of two primes: p and p-2. That is, primes representable as p * 2^L + p-2, where p and p-2 are primes, and L is the length of binary representation of p-2: L = A070939(p-2).at n=4A232235
• a(n) = the n-bit number in which the i-th bit is 1 if and only if prime(i) divides A060795(n).at n=17A277428
• Primes of the form (p*q+r*s)/2, where p,q,r,s are consecutive primes.at n=13A340307
• Prime numbersat n=13436