>>177-178 >>196

 Σ[m=n,6n] p(n,m)x^m = (x+x^2+x^3+x^4+x^5+x^6)^n /(6^n)
            = {x(1+x)(1-x+x^2)(1+x+x^2)}^n /(6^n),
より
 p(n,n+k)*6^n = C[n+k-1,k] = n・・・(n+k-1)/k!,  (0≦k≦5)
よって
 p(7,8)=7/(6^7), p(7,9)=28/(6^7), p(7,10)=84/(6^7),
 p(13,15)=91/(6^13), p(13,16)=455/(6^13), p(13,17)=1820/(6^13),

∴ n=7, m=9, p=13, q=16.