Question

La suma de los 8 primeros términos de 15, 19, 23 ...

Answer 1

15, 19, 23, 27,..

4 n + 11

4(5) + 11 = 20 + 11 = 31
4(6) + 11 = 24 + 11 = 35
4(7) + 11 = 28 + 11 = 39
4(8) + 11 = 32 + 11 = 43

15, 19, 23, 27, 31, 35, 39, 43  

15 + 19 + 23 + 27 + 31 + 35 + 39 + 43 =232