181193

Properties

Appears in sequences

• a(n+1) is the smallest prime formed by appending a single digit to a(n); a(1)=18.at n=4A160954
• Primes that are the concatenation of prime(n) and prime(n+2).at n=10A253245
• Number T(n,k) of permutations p of [n] with no fixed points where the maximal displacement of an element equals k; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=61A259784
• Number of permutations of [n] with no fixed points where the maximal displacement of an element equals six.at n=4A321052
• Prime numbersat n=16427