247141
domain: N
Properties
Primality
- Prime
- yes
Appears in sequences
- Balanced primes separated from the next lower and next higher prime neighbors by 42.at n=0A053077
- First occurrence of distances of equidistant lonely primes. Each equidistant prime is at the same distance (or has the same gap) from the preceding prime and the next prime.at n=7A054342
- Equidistant lonely primes. Each prime is the same distance (gap) from the preceding prime and the next prime. These distances are maximal: each distance is larger than all such previous distances.at n=5A058867
- Duplicate of A054342.at n=7A058869
- Smallest prime p such that both p +/- 2n are primes closest to p, or zero if no such prime exists.at n=20A103709
- a(0)=2. For n>=1, a(n) = a(n-1) + n if a(n-1) is composite; a(n) = a(n-1)*n if a(n-1) is prime.at n=19A131199
- The first primes in centuries with three primes.at n=15A157131
- First pair of primes (p1, p2) that begin centuries of primes having the same prime configuration, ordered by increasing p2. Each configuration is allowed only once.at n=28A164987
- Primes P where the nearest prime is greater than 3*log(P) away.at n=6A330427
- Prime numbersat n=21806