# Definition:Odd Integer/Odd-Times Odd/Sequence

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## Definition

The sequence of **odd-times odd integers** begins:

- $9, 15, 21, 25, 27, \ldots$

This sequence is A071904 in the On-Line Encyclopedia of Integer Sequences (N. J. A. Sloane (Ed.), 2008).

## Euclid's Definition

In the words of Euclid:

*An***odd-times odd number**is that which is measured by an odd number according to an odd number.