A033318 Least D in the Pellian x^2 - D*y^2 = 1 for which y has least solution n.

3, 2, 7, 5, 23, 10, 47, 17, 79, 26, 119, 21, 167, 50, 176, 65, 287, 82, 359, 57, 88, 122, 527, 28, 623, 170, 727, 111, 839, 44, 959, 257, 216, 290, 1035, 183, 1367, 362, 19, 77, 1679, 22, 1847, 273, 208, 530, 2207, 456, 2399, 626, 128, 381, 2807, 730, 696

Offset: 1

Author

Eric W. Weisstein

Keywords

• nonn

Links

• Ray Chandler, Table of n, a(n) for n = 1..1008
• N. J. A. Sloane et al., Binary Quadratic Forms and OEIS (Index to related sequences, programs, references)
• Eric Weisstein's World of Mathematics, Pell Equation.

Crossrefs

Cf. A000037, A033317.

Extensions

Better description from Lekraj Beedassy, Feb 26 2002