a(n) is the first emirp p such that there are exactly n unordered pairs (q,r) of emirps with p = q*r + q + r.
A353030
a(n) is the first emirp p such that there are exactly n unordered pairs (q,r) of emirps with p = q*r + q + r.
Terms
- a(0) =13a(1) =1439a(2) =100799a(3) =3548879a(4) =14061599a(5) =38342303a(6) =120355199a(7) =12555446399
External references
- oeis: A353030