How many even integers n, such that 20<=n<=240 are of the form 3k+4, where k is any natural number?	Select the correct option:
A) 31 B) 33 C) 35 D) 37 E) 39
The first number is 22 = 16+6(1).   We can continue adding 6 to make a list: 22, 28, 34,...   The last number is 238 = 16+6(37)   There are 37 numbers in the list.   The answer is 37.
<result>D</result>
How many even integers n, such that 20<=n<=240 are of the form 3k+4, where k is any natural number?