<PRE><B>Question 495093</B>
What does this sequence have to do with even/odd? This is not really number theory either; number theory has to do with properties of numbers, mods, quadratic residues, primes, etc.


Just note that the sequence is arithmetic with a common difference of 3.


*[tex \LARGE a_n = 3n - 2]


Hence, *[tex \LARGE a_{200} = 3(200)-2 = 598]</PRE>