By HOLO on the 14th of February, 2017

5=t1, 7=t2, 9=t3, 11=t4, 13=t5.... tN=(2N+3) -> t15=(2[15]+3)= 33

Check: 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33

The fiftieth term in the sequence 5, 7, 9, 11, 13 is 33.

Refine By Siphora Ketchakeu on the 8th of March, 2017