Next Two Numbers-11

Question: What are the next two number in the series?
1, 2, 4, 7, 28, 33, 198, ?, ?

 

Answer:

The next two numbers are 205 and 1640.
The pattern is : 1 + 1 * 2 + 3 * 4 + 5 * 6 + 7 * 8 + 9 * 10 or to the current number add and multiply alternatively by the number's position to get the next number.

First number = 1
Second number = 1 + 1 = 2
Third number = 2 * 2 = 4
Fourth number = 4 + 3 = 7
Fifth number = 7 * 4 = 28
Sixth number = 28 + 5 = 33
Seventh number = 33 * 6 = 198
Eight number = 198 + 7 = 205
Ninth number = 205 * 8 = 1640
Tenth number = 1640 + 9 = 1649


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