Program: testmultinomialcoef.c
Test Multinomial_Coefficient() 

n  10
  x =   2   3   5   C(n;x) =   2520 
n  11
  x =   2   3   6   C(n;x) =   4620 
n  12
  x =   2   3   7   C(n;x) =   7920 


Large n
C(180;[ 1, 2,177]) = 2.8675800000000000e+06

Test xMultinomial_Coefficient() 

n  10
  x =   2   3   5   C(n;x) =   2520 
n  11
  x =   2   3   6   C(n;x) =   4620 
n  12
  x =   2   3   7   C(n;x) =   7920 


Large n
C(180;[ 1, 2,177]) = 2.8675800000000000e+06