181607

Properties

Appears in sequences

• Number of different lattices formed by intersections of two composition series of length n.at n=9A217944
• Lower twin primes p such that p*(p+2)+p-1, p*(p+2)+p+1 and p*(p+2)+p+3 have at most four distinct prime factors between them.at n=7A355803
• Prime numbersat n=16458