Primes of the form 8k+5 generated recursively: a(1)=5, a(n) = least prime p == 5 (mod 8) with p | 4+Q^2, where Q is the product of all previous terms in the sequence.
A057208
Primes of the form 8k+5 generated recursively: a(1)=5, a(n) = least prime p == 5 (mod 8) with p | 4+Q^2, where Q is the product of all previous terms in the sequence.
Terms
- a(0) =5a(1) =29a(2) =1237a(3) =32171803229a(4) =829a(5) =405565189a(6) =14717a(9) =53a(10) =421a(11) =13a(12) =109a(13) =4133a(15) =461a(16) =34549
External references
- oeis: A057208