1,6,11,16,21,26
-2, -4, -8, -16
The sequence is arithmetic if the difference between every two consecutive terms is always the same.
Because Pythagoras was the first person to prove the pythagorean theorem correct and his philosophy influence all other philosophers after his death, incluing Plato and Aristotle. His Pythagorean...
This link explains it all. Please see related link below.because it is Christmas colors