蔡家雄 发表于 2023-3-19 10:38
求 \(x^2 - ((2n+1)^2+4)*y^2=±((2n+1)^2+4)\) 的最小解
\((2n+1)^2+4=5, 13, 29, 53, 85, 125, 173, 2 ...
(5,[5,2],[20,9])
(13,[65,18],[2340,649])
(29,[377,70],[52780,9801])
(53,[1325,182],[482300,66249])
(85,[3485,378],[2634660,285769])
(125,[7625,682],[10400500,930249])
(173,[14705,1118],[32880380,2499849])
(229,[25877,1710],[88499340,5848201])
(293,[42485,2482],[210895540,12320649])
(365,[66065,3458],[456905540,23915529]) |