69949
domain: N
Appears in sequences
- Denominators of continued fraction convergents to sqrt(109).at n=11A041197
- Least k such that 10^n + k is a Sophie Germain prime and the lesser of a twin prime pair.at n=33A118580
- Numbers k such that distances from k to three nearest squares are three triangular numbers.at n=31A232501
- Semiprimes with only semiprime digits, each appearing at least once.at n=39A349275