In the following question, select the missing number from the given series :

1, 8, 29, 92, 281, ?

Answer : Option B

Explanation :

1 × 7 = 8 8 + 21 (7 × 3) = 29 29 + 63 (21 × 3) = 92 92 + 189 (63 × 3) = 281