arithmetic progression in a sentence

Examples

1. The formula which is already in arithmetic progression?
2. In the case of primes containing an arithmetic progression, Karatsuba proved that this limit is infinite.
3. As of 2011, the longest known arithmetic progression of " consecutive " primes has length 10.
4. Much of her work has focused on arithmetic progressions, in particular extensions of the Green Tao theorem.
5. The 30? 60? 90?triangle is the only right triangle whose angles are in an arithmetic progression.
6. An arithmetic progression is a sequence of numbers in which the difference between adjacent numbers remains constant.
7. The 3 : 4 : 5 triangles are the only right triangles with edges in arithmetic progression.
8. If you add a red 9, then the red 3, 6, and 9 are in arithmetic progression.
9. Linnik's theorem ( 1944 ) concerns the size of the smallest prime in a given arithmetic progression.
10. Note that in an arithmetic progression 1 + 2 + 3 + 4 + 5 = 15.