a(n)=sqrt((A173631(n))^2-4*P_n), where P_n is product of first n primes, if this value is integral and a(n)=0, otherwise.

A173632

a(n)=sqrt((A173631(n))^2-4*P_n), where P_n is product of first n primes, if this value is integral and a(n)=0, otherwise.

Terms

    a(0) =0a(1) =1a(2) =1a(3) =1a(4) =1a(5) =13a(6) =17a(7) =1a(8) =41a(9) =157a(10) =0a(11) =0a(12) =0a(13) =0a(14) =17659a(15) =0a(16) =0a(17) =0a(18) =0a(19) =0a(20) =0a(21) =0a(22) =0a(23) =0a(24) =0a(25) =0a(26) =0a(27) =0a(28) =0a(29) =0

External references