Number of primitive (aperiodic) reversible strings with n beads using exactly five different colors.
A056321
Number of primitive (aperiodic) reversible strings with n beads using exactly five different colors.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =60a(5) =900a(6) =8400a(7) =63000a(8) =417120a(9) =2551500a(10) =14804700a(11) =82764000a(12) =450518460a(13) =2404502100a(14) =12646078140a(15) =65771433000a(16) =339165516120
External references
- oeis: A056321