0,1,2,3,4,5,6,7,8,9,10..

-10,-9,-8,-7,-6,-5,-4,-3,-2,-1,0....

1,3,5,7,9,11,13,15,17...

2,3,5,7,11,13,17,19..

1,2,3,4,5,6,7,8,9,10...