a(n) = smallest prime in the sequence s(k) = n*s(k-1) - s(k-2), with s(0) = 1, s(1) = n - 1 (or a(n) = -1 if no such prime exists).

A269251

a(n) = smallest prime in the sequence s(k) = n*s(k-1) - s(k-2), with s(0) = 1, s(1) = n - 1 (or a(n) = -1 if no such prime exists).

Terms

    a(0) =-1a(1) =-1a(2) =2a(3) =3a(4) =19a(5) =5a(6) =41a(7) =7a(8) =71a(9) =89a(10) =109a(11) =11a(12) =2003a(13) =13a(14) =3121a(15) =239a(16) =271a(17) =17a(19) =19a(20) =419a(21) =461a(22) =11593a(23) =23a(24) =599a(25) =11356201a(26) =701a(28) =811a(29) =29a(30) =929

External references