Tubey

Contributed by Roger Bagula
Graphics by Paul Bourke

May 2003

-3 x8 - 3 y8 - 2*z8
+ 5 x4 y2 z2 + 3 x2 y4 z2
- 4 (x3 + y3 + z3 + 1) + (x + y + z + 1)4 + 1 = 0