Problem 45364. Sum of series

 a(n) = n^2 - (n-1)^2

   a(1)+a(2)+...+a(n)

Solution Comments

Problem Recent Solvers1269

Suggested Problems

• Select every other element of a vector

  36910 Solvers

• Return the largest number that is adjacent to a zero

  5527 Solvers

• Summing Digits within Text

  2609 Solvers

• reverse string

  387 Solvers

• (Linear) Recurrence Equations - Generalised Fibonacci-like sequences

  426 Solvers

More from this Author174

• ZigZag - 04

  15 Solvers

• Chain multiplication - 02

  23 Solvers

• Sky full of stars - 01

  28 Solvers

• How lucky r u ?

  15 Solvers

• Sky full of stars - 02

  27 Solvers