Talk:List rooted trees: Difference between revisions
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(Question about enumerating ways to nest) |
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==Definition of ways to nest== |
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If I understand correctly, OEIS A81 lists the number of unique ways n bags can be nested, eg 9 for 5 bags. The task description states "As an example output, run 5 bags. There should be 12 ways.". In addition, "( () (()) () )" is considered different from "( (()) () () )". Please explain. |
If I understand correctly, OEIS A81 lists the number of unique ways n bags can be nested, eg 9 for 5 bags. The task description states "As an example output, run 5 bags. There should be 12 ways.". In addition, "( () (()) () )" is considered different from "( (()) () () )". Please explain. |
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--[[User:Craigd|CraigD]] ([[User talk:Craigd|talk]]) 12:59, 20 August 2015 (UTC) |
Latest revision as of 15:51, 10 July 2018
Definition of ways to nest
If I understand correctly, OEIS A81 lists the number of unique ways n bags can be nested, eg 9 for 5 bags. The task description states "As an example output, run 5 bags. There should be 12 ways.". In addition, "( () (()) () )" is considered different from "( (()) () () )". Please explain.