Period-61 Herschel oscillator

In this pattern, Buckingham pushes Herschel track constructions to their ultimate limit, namely the minimum number of generations between two Herschels passing through the same component. Only the 77-generation flip and the 112-generation right turn allow this compression to be as low as 61 generations. To pack Herschels this closely, one must delete all excess gliders, which would otherwise interfere with the next Herschel on the track.
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