The missing number of the sequence 0, 2, 8, 18,

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The missing number of the sequence 0, 2, 8, 18, —, 50 is :

1. 28
2. 30
3. 32
4. 36

Correct Option: C

The sequence is based on the following pattern :
2 × 0² = 2 × 0 = 0
2 × 1² = 2 × 1 = 2
2 × 2² = 2 × 4 = 8
2 × 3² = 2 × 9 = 18
2 × 4² = 2 × 16 = ?
∴ ? = 32
Hence , required number is 32.