odd number - Hutchinson encyclopedia article about odd number Printer Friendly
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odd number

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odd number

Any number not divisible by 2, thus odd numbers form the infinite sequence 1, 3, 5, 7 ... . Every square number n2 is the sum of the first n odd numbers. For example, 49 = 72 = 1 + 3 + 5 + 7 + 9 + 11 + 13.



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But he never said anything, so far as I can remember, about counting up to the odd number of seventeen by the even numbers of twos.
The Marvelous Land of Oz by Baum, L. Frank View in context
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