10 and ten........walking hand in hand..........................3, 5, 7, 9, 11, 13, 15, 17, 19, 21...........in the positive direction..............................21................the location of the 2nd zero.............7 primes out of 10......................................9 is the 1st non prime..........the 1st hill north of 1 in the R zeta function is just under ten....................at 9.99...........I am just rounding stuff for generality........stuff probably does not match up 100%.....................this is like a rough draft.........so u understand my mindset......................


3, 5, 7, 9, 11, 13, 15, 17, 19, 21............that is the same sequence u get by taking the diff of the squares...................................................7 primes out of 10.....................................9, 15, and 21 are the non primes........................the 1st zero is right under 15.........the 2nd one is right over 21.........................odd doncha think?  Other than 9, 15 and 21 all being odd, strange I should say.......................or type.........but anyways............

Integers

Integers are like whole numbers, but they also include negative numbers ... but still no fractions allowed!

So, integers can be negative {-1, -2,-3, -4, -5, ... }, positive {1, 2, 3, 4, 5, ... }, or zero {0}
We can put that all together like this:

Integers = { ..., -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, ... }