10321919
domain: N
Properties
Primality
- Prime
- yes
Appears in sequences
- Smallest initial value k that reaches 1 in n steps when iterating the map m -> rad(m)-1, where rad(m) is the squarefree kernel of m (A007947).at n=38A075426
- Primes of the form (2^n * n!) - 1.at n=3A093173
- Primes of the form n!! - 1.at n=4A117141
- a(n) = n!! - 1.at n=16A128882
- Largest prime < n!! (double factorial of n).at n=13A178607
- Double factorial primes: primes which are within 1 of a double factorial number.at n=5A274385
- Prime numbersat n=684518