series programs in c language

Various series programs in C language are given below:

1. C Program to Print nth term (Tn) in Arithmetic Progression(AP) Series
2. C program of series 1/1!+2/2!+3/3!+..........n/n!
3. C program of series 1^2-2^2+3^2-......+n^2
4. C program to Print Series 1^2+2^2+3^2+......n^2