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On this page are all constructions for C4[ 120, 21 ]. See Glossary for some detail.

PL(MSY( 4, 15, 11, 0)) = PL(MSY( 4, 15, 4, 0)) = PL(WH_ 20( 5, 1, 4, 11), [4^15, 15^4])

      = PL(Br( 4, 15; 4)) = BGCG(W( 6, 2), C_ 5, {2, 4}) = PL(CS(C_ 15(1, 4)[ 15^ 2], 0))

      = PL(CSI(C_ 15(1, 4)[ 15^ 2], 4)) = BGCG(C_ 15(1, 4), C_ 4, 1') = BGCG(W( 10, 2), C_ 3, {2, 5})

      = BGCG({4, 4}_< 8, 2>; K1;1) = SS[120, 6]

Cyclic coverings