Smallest prime of the form 1+n*(n+n_2)*...*(n+n_n) with 1<=n_2<n_3<...<n_n. A089308 gives terms of products.
A089307
Smallest prime of the form 1+n*(n+n_2)*...*(n+n_n) with 1<=n_2<n_3<...<n_n. A089308 gives terms of products.
Terms
- a(0) =2a(1) =7a(2) =61a(3) =1201a(4) =15121a(5) =332641a(6) =9313921a(7) =319334401a(8) =10897286401a(9) =419026608001
External references
- oeis: A089307