1000000内满足条件的t有98个:
{1395,3810,4587,6729,16746,17979,18720,20373,38013,39909,43731,46671,49905,56016,60273,70926,80628,89568,95763,96399,110826,124785,150447,154380,161247,170718,200517,209919,232431,240333,247011,250449,285693,288963,306435,308793,312840,316746,320358,324999,337689,344865,347517,352110,368952,379410,404742,413583,424839,425400,432414,454254,464046,468135,536784,546486,547731,548565,548592,560016,561738,570279,578622,599769,602226,604047,615645,619944,628617,633153,634035,636534,653382,673248,676791,679941,680766,685323,686310,686625,713295,726141,732216,774489,792423,829950,839295,861408,884313,888303,893391,899985,901953,917037,932745,936351,941370,958995}
其中满足第二个条件的有30个:
{16746,18720,20373,39909,46671,56016,89568,150447,161247,209919,308793,324999,379410,432414,454254,468135,536784,546486,578622,615645,628617,673248,680766,686625,839295,861408,888303,899985,932745,958995} |