Magic state 93, carbon nanotubes, and the hexagonal tortoise problem.

Consider also:

  1. “This Tortoise is sixfold, the Holy Hexagram.”
  2. “In nature the Tortoise has 6 members at angles of 60°.”
  3. “Fourfold is He, the Elephant upon whom the Universe is poised: but the carapace of the Tortoise supports and covers all.”
  4. Qsquare: the superposition of all permutated states of a magic square
  5. The State of the Library in 2011