# 1+3+5+7+........... Nth order value

Saurabh Singh
8 years ago

If the initial term of an arithmetic progression is$a_1$and the common difference of successive members isd, then thenth term of the sequence ($a_n$) is given by:

$\ a_n = a_1 + (n - 1)d,$
$a_1$= 1
d=2
so,
nth order term is $a_n$ = 1+(n-1)*2
$a_n$=2n-1

`Thanks & RegardsSaurabh Singh,askIITians FacultyB.Tech.IIT Kanpur`