a(1) = 2, a(n) is the least prime of the form 2k*a(n-1)+1 where 2k is the least even number not used earlier.
A091859
a(1) = 2, a(n) is the least prime of the form 2k*a(n-1)+1 where 2k is the least even number not used earlier.
Terms
- a(0) =2a(1) =5a(2) =31a(3) =311a(4) =3733a(5) =59729a(6) =1194581a(7) =57339889a(8) =1605516893a(9) =22477236503
External references
- oeis: A091859