Primes of the form 20x^2+20xy+47y^2.
A139992
Primes of the form 20x^2+20xy+47y^2.
Terms
- a(0) =47a(1) =167a(2) =383a(3) =503a(4) =647a(5) =887a(6) =983a(7) =1223a(8) =1487a(9) =1823a(10) =1847a(11) =2063a(12) =2663a(13) =2687a(14) =2903a(15) =3023a(16) =3167a(17) =3407a(18) =3527a(19) =3863a(20) =4007a(21) =4583a(22) =4703a(23) =5087a(24) =5927a(25) =6047a(26) =6263a(27) =6863a(28) =7103a(29) =7607
External references
- oeis: A139992