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== Facts == | == Facts == | ||
=== Abstractly SV4 scale patterns === | === Abstractly SV4 scale patterns === | ||
* There exist no 6-letter abstractly SV4 | * There exist no 6-letter abstractly SV4 scale patterns. | ||
* There exist 3 7-letter abstractly SV4 | * There exist 3 7-letter abstractly SV4 scale patterns: '''0123210''', '''0102013''', and '''3102010'''. The last two patterns are a chiral pair. | ||
* There exist 2 8-letter abstractly SV4 | * There exist 2 8-letter abstractly SV4 scale patterns: '''00100232''' and '''01212103'''. | ||
* There exist no 9-letter abstractly SV4 | * There exist no 9-letter abstractly SV4 scale patterns. | ||
== Open questions == | == Open questions == | ||