Find the next number of the series - 5, 8, 21, 52, 109, ?

Question

Find the number that comes next in the following series:

3, 7, 12, 14, 16, 19, 21, 25, 30, 41, 45, 52, 54, 56, 59, 61, 65, 70, ?

Answer 1

5 8 21 52 109 200
+3 +13 +31 +57 +91
+10 +18 +26 +34
+8 +8 +8