Self Maths Puzzle Numerical Ability Sequence and Series

What is the next number of the following sequence
1, 1, 3, 7, 13, 21,... ?

Read Solution (Total 2)

Self Other Question

Probability of getting getting 2 heads when we throw 2 biased coins What is the next number of the following sequence
15, 22, 39, 77, 143, 245,...