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seen Aug 28 at 2:06

Oct
9
awarded  Notable Question
Oct
5
accepted How do I prove $2^{n+1} + 2n + 1 = 2^{n+2} - 1$
Oct
5
comment How do I prove $2^{n+1} + 2n + 1 = 2^{n+2} - 1$
Ah, that makes a lot more sense. I copied the problem down incorrectly - thanks very much!
Oct
5
awarded  Editor
Oct
5
revised How do I prove $2^{n+1} + 2n + 1 = 2^{n+2} - 1$
edited body
Oct
5
asked How do I prove $2^{n+1} + 2n + 1 = 2^{n+2} - 1$
May
2
awarded  Citizen Patrol
Apr
23
awarded  Supporter
Nov
16
awarded  Popular Question
Apr
21
accepted Puzzle - 123456789 = 100 with three operations?
Jan
16
awarded  Scholar
Jan
16
comment Puzzle - 123456789 = 100 with three operations?
Standard order will probably be easier so that's completely fine.
Jan
16
accepted Chair Placement
Jan
16
comment Chair Placement
Yes, you can distinguish. Apologies. You have a red/green/blue/orange stool, a red/green/blue/orange couch, and a red/green/blue/orange crate. You MUST place exactly one stool, exactly one couch, and exactly one crate (each into one of the 8 positions). They cannot reside in the same position.
Jan
16
asked Chair Placement
Jan
16
awarded  Student
Jan
16
comment Puzzle - 123456789 = 100 with three operations?
Right, but my question isn't so much what is the solution as much as what is the process.
Jan
16
asked Puzzle - 123456789 = 100 with three operations?