B(1,5): faces=160, Sigma faces=8, remaining after greedy collapse=8, equals Sigma: True
B(2,5): faces=222, Sigma faces=26, remaining after greedy collapse=26, equals Sigma: True
B(3,5): faces=240, Sigma faces=80, remaining after greedy collapse=80, equals Sigma: True
B(2,6): faces=606, Sigma faces=26, remaining after greedy collapse=26, equals Sigma: True
B(3,6): faces=704, Sigma faces=80, remaining after greedy collapse=80, equals Sigma: True
B(2,7): faces=1598, Sigma faces=26, remaining after greedy collapse=26, equals Sigma: True
B(3,7): faces=2016, Sigma faces=80, remaining after greedy collapse=80, equals Sigma: True
B(4,7): faces=2158, Sigma faces=242, remaining after greedy collapse=242, equals Sigma: True
