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| Math Central | Quandaries & Queries |
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0 7 26 63 _ 215 342 fill the blank? find the missing number |
one way to start: look at how fast they grow. Do they grow about as fast as the sequence of successive squares (1,4,9,16,25,36,49...)?
Cubes? Powers of 2? Powers of 3?
Then when you have a good guess see how you would modify it to get the actual sequence.
Good Hunting!
RD
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Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.