The numbers D in the set {D :=(2n+1)^2-4m^2, 1<=m<=n} that generate the smallest solution x to x^2 - D*y^2 = 1.

A074074

The numbers D in the set {D :=(2n+1)^2-4m^2, 1<=m<=n} that generate the smallest solution x to x^2 - D*y^2 = 1.

Terms

    a(0) =5a(1) =21a(2) =33a(3) =17a(4) =105a(5) =105a(6) =189a(7) =33a(8) =105a(9) =405a(10) =333a(11) =141a(12) =473a(13) =57a(14) =817a(15) =189a(16) =325a(17) =885a(18) =77a(19) =1425a(20) =1173a(21) =1925a(22) =1425a(23) =2301a(24) =101a(25) =105a(26) =1425a(27) =333a(28) =777a(29) =1785

External references