Question

Guess the rule and add the next number in the sequence.
1, 5, 13, 25, 41,

Answer 1

61

Explanation:

1 + (4 x 1) = 5

5 + (4 x 2) = 13

13 + (4 x 3) = 25

25 + (4 x 4) = 41

41 + (4 x 5) = 61