[r-t] internal runs
holroyd at math.ubc.ca
Tue Feb 3 01:50:44 UTC 2015
OK, here is my new challenge. Find a nice, ringable touch of Major
containing all 4-runs including *internal* runs, i.e. things like x5678xxx
I believe there are 1002 such rows (by the inclusion-exclusion formula).
Since the 480 front/back runs can be got into a 32-part structure with
length 1536 (with a nice method) or 1280 (with a less nice method), it
ought to be possible to do this easily in a peal length.
The challenge is to find an appropriate organizational structure.
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