(Andy Balaam and Miguel Garvie, 07/2003)
F(n,0) = number of terms in a poly with n variables of order 0
F(n,0) = number of terms in a poly with only constant terms
F(n,0) = 1
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F(n,1) = number of terms in a poly with n variables of order 1
F(n,1) = one term for each variable and a constant term
F(n,1) = n+1
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F(1,m) = number of terms in a poly with 1 variable of order m
F(1,m) = number of terms in( a + bx + cx^2 + ... + zx^m )
F(1,m) = m+1