The forms of f2（n,k） and g2（n,k） were shown in Essentials ofCombinalorial Mathematics written by Mao Jingzhong. This paper gives the formsof f1（n,k） and g1 （n,k）, where 2.
文摘The forms of f2（n,k） and g2（n,k） were shown in Essentials ofCombinalorial Mathematics written by Mao Jingzhong. This paper gives the formsof f1（n,k） and g1 （n,k）, where 2.
