Find Series sum of || 1+(1+2)+(1+2+3)+... +(1+2+3...n) || in C program #shorts #coding #programming

C program to find the series sum of the series

1+(1+2)+(1+2+3)+(1+2+3+4)+.....+(1+2+3+...+n)

where, n is number of terms.

C programming language

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