169111

Properties

Appears in sequences

• Primes p such that p+1, p+2, p+3 and p+4 have equal number of divisors.at n=22A119728
• Least k (or 0 if no such k exists) such that 10^n+k is the least bemirp of a quartet of 4 different bemirps and the least bemirp of n+1 digits.at n=9A122568
• Expansion of g.f. 1/ (1-x^1*(1-x^(m+1))/ (1-x^2*(1-x^(m+2))/ (1- ... ))) for m=9.at n=24A228645
• Primes p with A047967(p) also prime.at n=31A236418
• Prime numbersat n=15422