【编者按】 末“四”位数0687,3187,5687,8187
末“五”位数03645,16145,28645,41145,53645,66145,78645,91145
末“六”位数060410,260410,460410,660410,860410
末“七”位数7643794,9643794,5643794,3643794,1643794,0851892,5851892
末“八”位数80188404,60188404,40188404,20188404,00188404
末“九”位数001852718
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