241919

Properties

Appears in sequences

• Primes p such that 7 is the largest of all prime factors of the numbers between p and the next prime (cf. A052248).at n=35A080186
• a(n) is the number of numbers removed in each step of Eratosthenes's sieve for 10!.at n=2A145537
• Primes which produce records in A157188, at index i=pi(a(n)) (pi=A000720).at n=10A157190
• a(n) = 6*n! - 1.at n=8A173316
• Smallest number requiring n terms to be expressed as a sum of factorials.at n=33A200748
• The least number having n representations as p*q - p - q for primes p <= q.at n=14A218862
• Triangle T(n,k) giving the largest member of "the infinite trunk of factorial beanstalk" (A219666) whose factorial base representation contains n digits (A084558) and the most significant such digit (A099563) is k.at n=32A230429
• Lesser of twin primes such that the sum of the twin prime pair is the sum of 2 positive cubes.at n=13A270244
• The least prime p such that equation x = p*sopf(x) (where sopf(x) is the sum of distinct prime factors of x) has exactly n solutions in positive integers.at n=15A336296
• a(n) is the least prime p such that there are exactly n primes of the form p+d where d is a divisor of p-1 or of p+1.at n=34A340160
• a(n) is the least prime p such that there are exactly n pairs of primes (q,r) with p > q > r such that q | r + p and r | q + p.at n=17A344776
• Prime numbersat n=21383