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Maths Puzzly Wuzzly
Posted: Tue Nov 16, 2010 10:13 am
by Dinos Sfyris
Mate at work set this for me last night. I still have no idea what the answer is. What comes next in this sequence?
1
11
21
1211
?
Re: Maths Puzzly Wuzzly
Posted: Tue Nov 16, 2010 10:32 am
by Charlie Reams
111221 (it's the say-what-you-see sequence)
Re: Maths Puzzly Wuzzly
Posted: Tue Nov 16, 2010 10:38 am
by Dinos Sfyris
Ah very good. Never would have gotten that. You're answer's not very blinvisible tho xx
Re: Maths Puzzly Wuzzly
Posted: Tue Nov 16, 2010 11:12 am
by Charlie Reams
Dinos Sfyris wrote:Ah very good. Never would have gotten that. You're answer's not very blinvisible tho xx
I've seen it before, it's one of those puzzles like SEND MORE MONEY which resurfaces occasionally. By the way if you get stumped on a sequence puzzles, a good place to start is
OEIS.
Re: Maths Puzzly Wuzzly
Posted: Tue Nov 16, 2010 11:19 am
by Howard Somerset
There is a less common variation to this one, and in both versions the first four terms are as you've given, Dinos.
Charlie's offer of a fifth term is a say-what-you-see reading left to right.
The less common alternative is say-what-you-see looking at the whole thing regardless of order. For this alternative, the sequence continues:
3112
211213
312213
etc.
The alternative eventually loops, whereas the more common version just keeps extending.
Re: Maths Puzzly Wuzzly
Posted: Tue Nov 16, 2010 11:35 am
by Charlie Reams
Howard Somerset wrote:There is a less common variation to this one, and in both versions the first four terms are as you've given, Dinos.
Charlie's offer of a fifth term is a say-what-you-see reading left to right.
The less common alternative is say-what-you-see looking at the whole thing regardless of order. For this alternative, the sequence continues:
3112
211213
312213
etc.
The alternative eventually loops, whereas the more common version just keeps extending.
Like
Re: Maths Puzzly Wuzzly
Posted: Tue Nov 16, 2010 11:48 am
by Howard Somerset
One unfortunate habit of mine when seeing a puzzle I like is to try to extend it.
So ... using the rule as described by Charlie, suppose you can choose any starting number, rather than being forced to start with "1". What is the longest closed loop you can find?
Finding a loop of length 1 is trivial. But can any longer loops be found? I should add that I've no idea of the answer to this; I've only just thought about it.
Re: Maths Puzzly Wuzzly
Posted: Tue Nov 16, 2010 8:17 pm
by Eoin Monaghan
I heard this one on the radio, what connects:
3
7
10
11
12
17?
Re: Maths Puzzly Wuzzly
Posted: Tue Nov 16, 2010 9:31 pm
by Kai Laddiman
Eoin Monaghan wrote:I heard this one on the radio, what connects:
3
7
10
11
12
17?
E
Re: Maths Puzzly Wuzzly
Posted: Tue Nov 16, 2010 9:38 pm
by Eoin Monaghan
Kai Laddiman wrote:Eoin Monaghan wrote:I heard this one on the radio, what connects:
3
7
10
11
12
17?
E
Yeah.
Re: Maths Puzzly Wuzzly
Posted: Tue Nov 16, 2010 10:29 pm
by Kai Laddiman
Eoin Monaghan wrote:Kai Laddiman wrote:Eoin Monaghan wrote:I heard this one on the radio, what connects:
3
7
10
11
12
17?
E
Yeah.
Oops, I forgot to spolierise that, sorry if I spoilt your puzzle.
What connects the following users?
Kirk Bevins
Harry Newton
David Ashby
Dan Abrey
Re: Maths Puzzly Wuzzly
Posted: Tue Nov 16, 2010 11:52 pm
by Gavin Chipper
Did they all lose to Richard Pay?
Re: Maths Puzzly Wuzzly
Posted: Wed Nov 17, 2010 10:02 am
by Jon Corby
Kai Laddiman wrote:What connects the following users?
Kirk Bevins
Harry Newton
David Ashby
Dan Abrey
They're all Richard Brittain aliases?
Re: Maths Puzzly Wuzzly
Posted: Wed Nov 17, 2010 6:03 pm
by Kai Laddiman
That was the trick, there are 4 different answers to this question, 2 of which have already been mentioned.
Re: Maths Puzzly Wuzzly
Posted: Thu Nov 18, 2010 1:24 pm
by Dinos Sfyris
Haha no way! I thought those suggestions were jokes for the other 3 people, given that they were true for Kirk!
A less colourful link: They all have 3 vowels in their full name