72089

Properties

Appears in sequences

• Primes of the form prime(n)^2 - prime(n+1) - 1.at n=25A097938
• Smallest prime for which 2^n exactly divides the class number h(-4p).at n=8A102264
• a(1)=1. a(n) = a(n-1)th integer from among those positive integers which do not occur earlier in the sequence and which are coprime to n.at n=17A121219
• Primes of the form k+(k+3)^2 where k is a nonnegative integer.at n=47A248697
• Compressed discriminator of the factorial numbers.at n=38A272649
• a(n) is the cyclic length of the iterative sequence f(k) = prime(f(k-1) mod 2^n) with f(0) = 1.at n=31A326613
• Prime numbersat n=7136