WBPSC 2019 Solved Paper

In the following series, how many such odd numbers are there which are divisible by 3 or 5, then followed by odd numbers, and then also following by even numbers?
12, 19, 21, 3, 25, 18, 35, 20, 22, 21, 45, 46, 47, 48, 9, 50, 52, 54, 55, 56