Pascal's Triangle
This circuit distributes trains following the entries of Pascal's Triangle. Read more at Wikipedia on Pascal's Triangle and binomial expansion.
The circuit uses ten compact flip-flops. The platform numbers indicate the number of trains visiting each platform for each 16 train cycle. A platform is never visited twice in succession.
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| Click layout to pause/run train | Click points to switch 0/1 | Click start circle to reset train/points |
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Lazy points switch between upper 0 or lower 1 branch lines Trains arriving on a branch line switch the point to that line |
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Sprung points allow branch line trains to join the main line All main line trains go straight ahead and never 'branch off' |