Least positive integer which starts a chain of exactly n primes under the map p -> p+p'+p'', where p' = least prime > p.
A226291
Least positive integer which starts a chain of exactly n primes under the map p -> p+p'+p'', where p' = least prime > p.
Terms
- a(0) =1a(1) =2a(2) =17a(3) =11a(4) =5a(5) =7a(6) =2543a(7) =249217a(8) =1783841a(9) =2494517a(10) =624921844601a(11) =507995698619
External references
- oeis: A226291