def t_o(a):t = int(a/2)b = t*t-1c = t*t+1f = (a*a+b*b==c*c)print(f,'ou',a,b,c,a*a+b*b,c*c)def t_j(a):t =a*ab=int(t/2)c =t-bf = (a*a+b*b==c*c)print(f,'j-',a,b,c,f,a*a+b*b,c*c)for i in range(2,100,2):t_o(i)t_j(i+1)

奇数平方写连续

偶数半方加减一