88721

Properties

Appears in sequences

• Primes p with P(p+1) also prime, where P(.) is the partition function (A000041).at n=20A234900
• SanD-68 primes p: such that p+d is also prime and sum of digits A007953(p(p+d)) = d, with d = 68.at n=9A307474
• a(n) = Sum_{k=1..n} floor(n/k) * 3^(k-1).at n=10A344814
• Prime numbersat n=8592