a(n) is the least positive integer k such that Mordell's equation y^2 = x^3 + k^2 has exactly n integer solutions with y >= 0.
A392549
a(n) is the least positive integer k such that Mordell's equation y^2 = x^3 + k^2 has exactly n integer solutions with y >= 0.
Terms
- a(0) =2a(1) =11a(2) =1a(3) =6a(4) =3a(5) =10a(6) =80a(7) =62a(8) =63a(9) =210a(10) =55a(11) =840a(12) =15a(13) =440a(14) =120a(15) =960a(16) =3240a(17) =561a(18) =2415a(19) =510a(20) =665a(21) =19320a(22) =1155a(23) =5320a(24) =148785a(25) =31185a(26) =9240a(27) =665000a(28) =73920a(29) =143640
External references
- oeis: A392549