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4 posts tagged with sequences. (View popular tags)
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Significand of the figure

From the somewhat arbitrary and dimensionful to the timeless classic, one man's subjective list of notable properties of specific numbers. [more inside]
posted by Talkie Toaster on Nov 8, 2012 - 39 comments

The On-Line Encyclopedia of Integer Sequences

Ever wondered what comes next, and why? The On-Line Encyclopedia of Integer Sequences has the answers. (Previously.)
posted by parudox on Mar 10, 2009 - 33 comments

3 is an odd prime, 5 is an odd prime, 7 is an odd prime, 9 is a very odd prime...

The Prime Game is not really much of a game, but it is a neat & little-known fact about the decimal representation of prime numbers.
posted by Wolfdog on Jul 10, 2007 - 24 comments

Can you stump the Encyclopedia of Integer Sequences?

Can you stump the Encyclopedia of Integer Sequences? Every identifiable sequence known to man, including:

Name: Busy Beaver problem: maximal number of steps that an n-state Turing machine can make on an initially blank tape before eventually halting.
Comment: The sequence grows faster than any computable function of n, and so is non-computable.
Keywords: hard,huge,nice,nonn,bref


If your sequence does not appear there, you might want to try the Super Seeker.
posted by vacapinta on Apr 15, 2002 - 9 comments

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