404599

Appears in sequences

• Start of the first run of exactly n consecutive odd composite numbers.at n=35A075067
• Number of n X 4 0..1 arrays with rows, columns, diagonals and antidiagonals unimodal.at n=8A223640
• The least semiprime (A001358) such that between it and the next n semiprimes, but not the next n+1 semiprimes, there are no primes.at n=22A228170