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No First-Hand-Neighbors & Second-Hand-Neighbors!!!
Posted 06 July 2013 - 09:22 PM
Create the shortest possible sequence such that no number is next to its first-hand or second-hand neighbors (e.g., the number 3 cannot be next to numbers 1, 2, 4, or 5, which are first- and second- neighbors).
Posted 07 July 2013 - 01:12 AM
No as there would be a number that could not be beside any other. For example in a sequence of numbers 1-5 the number 3 could not be beside any other number making a run of 5 (or less) impossible.is a 5 sequence possible?
Posted 07 July 2013 - 06:09 AM
- Bertrand Russell
Posted 07 July 2013 - 04:54 PM
i should have been more clear in the op, the sequence must start at 1 and go to some n greater than 1 (consecutively).
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