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On this page are all constructions for C4[ 81, 4 ]. See Glossary for some detail.

PS( 3, 27; 8) = PS( 3, 27; 10) = MPS( 3, 54; 17)

      = MPS( 3, 54; 19) = MSY( 3, 27, 10, 3) = UG(ATD[ 81, 3])

      = UG(ATD[ 81, 4]) = MG(Cmap( 81, 1) { 6, 27| 6}_ 54) = MG(Cmap( 81, 2) { 6, 27| 6}_ 54)

      = HT[ 81, 2]

Cyclic coverings