Respuesta :

3, 4, 6, 9, 13, 18, 24
3 + 1 = 4
4 + 2 = 6
6 + 3 = 9
9 + 4 = 13
13 + 5 = 18
18 + 6 = 24
24 + 7 = 31
The next number is 31.