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On this page are all constructions for C4[ 72, 9 ]. See Glossary for some detail.

R_ 36( 20, 19) = PX( 18, 2) = KE_ 18( 1, 3, 2, 17, 1)

      = Curtain_ 18( 1, 9, 1, 2, 11) = PL(BC_18({ 0, 9 }, { 1, 10 }) = UG(ATD[ 72, 36])

      = UG(ATD[ 72, 40]) = ATD[ 6, 1]#ATD[ 18, 3] = ATD[ 18, 3]#ATD[ 18, 3]

      = UG(Rmap(144, 21) { 18, 4| 4}_ 36) = UG(Rmap(144,191) { 18, 4| 4}_ 18) = MG(Rmap( 72, 12) { 4, 18| 4}_ 18)

      = DG(Rmap( 72, 12) { 4, 18| 4}_ 18) = DG(Rmap( 72, 13) { 18, 4| 4}_ 18) = MG(Rmap( 72, 82) { 4, 36| 4}_ 36)

      = DG(Rmap( 72, 84) { 36, 4| 4}_ 36) = DG(Rmap( 36, 10) { 4, 9| 4}_ 18) = DG(Rmap( 36, 35) { 4, 18| 4}_ 18)

      = PL(W( 18, 2)[ 4^ 18]) = BGCG(W( 18, 2); K1;4) = B(R_ 18( 11, 10))

      = BGCG(R_ 18( 11, 10); K1;2) = AT[ 72, 2]