Composite numbers n such that the quadratic form x^2+n*y^2 does not represent a prime strictly between n and 2n.
A244030
Composite numbers n such that the quadratic form x^2+n*y^2 does not represent a prime strictly between n and 2n.
Terms
- a(0) =8a(1) =24a(2) =26a(3) =35a(4) =56a(5) =68a(6) =119a(7) =120a(8) =125a(9) =134a(10) =185a(11) =194a(12) =206a(13) =290a(14) =314a(15) =326a(16) =341a(17) =356a(18) =371a(19) =404a(20) =464a(21) =489a(22) =524a(23) =545a(24) =626a(25) =635a(26) =671a(27) =698a(28) =699a(29) =749
External references
- oeis: A244030