# cubes at depth = 0 : 0 # cubes at depth = 1 : 8 # cubes at depth = 2 : 56 # cubes at depth = 3 : 224 # cubes at depth = 4 : 824 # cubes at depth = 5 : 3320 # cubes at depth = 6 : 13400 # cubes at depth = 7 : 53672 # cubes at depth = 8 : 214400 # cubes at depth = 9 : 857840 # cubes at depth = 10 : 3431600 Boundary + Inner Volume + Outer Volume = Volume of Region: 4.41804885864258E-0002 + 4.16666151802847E+0000 + 9.61315799333460E+0000 = 1.38239999999495E+0001 = 1.38240000000000E+0001 Final result: 4.166662 < Volume = 4.188790 < 4.210842