Answer:

3587

Step-by-step explanation:

The given series appears to be an arithmetic progression where the first term (a) is 1, the common difference (d) is 3 (4 - 1), and the last term (an) is 49.

The formula for the sum of an arithmetic series is:

Sum (S) = (n/2) * [2a + (n - 1)d]

Let's plug in the values:

n = 49 (since there are 49 terms)

a = 1

d = 3

Sum (S) = (49/2) * [2*1 + (49 - 1)*3]

Sum (S) = (49/2) * [2 + 48*3]

Sum (S) = (49/2) * [2 + 144]

Sum (S) = (49/2) * 146

Sum (S) = (49/2) * 146

Sum (S) = 49 * 73

Sum (S) = 3587

So, the sum of the given series is equal to 3587.