Let p = n-th odd prime. Then a(n) = least prime congruent to 5 modulo 8 such that Legendre(a(n), q) = -1 for all odd primes q <= p.

A001992

Let p = n-th odd prime. Then a(n) = least prime congruent to 5 modulo 8 such that Legendre(a(n), q) = -1 for all odd primes q <= p.

Terms

    a(0) =5a(1) =53a(2) =173a(3) =173a(4) =293a(5) =2477a(6) =9173a(7) =9173a(8) =61613a(9) =74093a(10) =74093a(11) =74093a(12) =170957a(13) =360293a(14) =679733a(15) =2004917a(16) =2004917a(17) =69009533a(18) =138473837a(19) =237536213a(20) =384479933a(21) =883597853a(22) =1728061733a(23) =1728061733a(24) =1728061733a(25) =1728061733

External references