J.A.H. Hunter
Entertaining Mathematical Teasers, p 91
Dover Publications, Inc., 1983
N=8, O=7, G=9, U=0, H=1, T=2.
71536548
J.A.H. Hunter
Entertaining Mathematical Teasers, p 91
Dover Publications, Inc., 1983
N=8, O=7, G=9, U=0, H=1, T=2.
71536548