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On this page are all graphs related to C4[ 81, 4 ].

Graphs which this one covers

     9-fold cover of C4[ 9, 1 ] = DW( 3, 3)

     3-fold cover of C4[ 27, 1 ] = DW( 9, 3)

Graphs which cover this one

     2-fold covered by C4[ 162, 5 ] = PS( 6, 27; 8)

     3-fold covered by C4[ 243, 7 ] = PS( 9, 27; 8)

     4-fold covered by C4[ 324, 10 ] = PS( 12, 27; 8)

     4-fold covered by C4[ 324, 11 ] = PS( 3,108; 35)

     4-fold covered by C4[ 324, 12 ] = PS( 6,108; 17)

     4-fold covered by C4[ 324, 26 ] = UG(ATD[324,5])

     4-fold covered by C4[ 324, 27 ] = UG(ATD[324,7])

     5-fold covered by C4[ 405, 7 ] = PS( 15, 27; 8)

     5-fold covered by C4[ 405, 9 ] = PS( 3,135; 44)

     6-fold covered by C4[ 486, 8 ] = PS( 18, 27; 8)

     6-fold covered by C4[ 486, 24 ] = UG(ATD[486,25])