整数

Y = 1

Y = 2

Y = 3

Y = 4

Y = 5

……

X = 1

(2/1, 1)

X = 2

(4/2, 2)

(3/1, 1)

X = 3

(6/3, 3)

(5/2, 2)

X = 4

(8/4, 4)

(7/3, 3)

(4/1, 1)

X = 5

(10/5, 5)

(9/4, 4)

(6/2, 2)

X = 6

(14/6, 6)

(11/5, 5)

(8/3, 3)

X = 7

(14/7, 7)

(13/6, 6)

(10/4, 4)

(5/1, 1)

X = 8

(16/8, 8)

(15/7, 7)

(12/5, 5)

(7/2, 2)

X = 9

(18/9, 9)

(17/8, 8)

(14/6, 6)

(9/3, 3)

X = 10

(20/10, 10)

(19/9, 9)

(16/7, 7)

(11/4, 4)

X = 11

(22/11, 11)

(21/10, 10)

(18/8, 8)

(13/5, 5)

(6/1, 1)

X = 12

(24/12, 12)

(23/11, 11)

(20/9, 9)

(15/6, 6)

(8/2, 2)

……