Problem 45833. Triangle Numbers (★★)

 6 = 1 + 2 + 3

      *
     * *
    * * * 

 Input  n = 4
 Output t is 10

Solution Comments

Problem Recent Solvers95

Suggested Problems

• Cell joiner

  7575 Solvers

• Return the Fibonacci Sequence

  1548 Solvers

• Divisible by 10

  381 Solvers

• Back to Basics - Find no. of elements in a matrix?

  329 Solvers

• Find the sides of an isosceles triangle when given its area and height from its base to apex

  2240 Solvers

More from this Author52

• Create times-tables (★★★)

  87 Solvers

• Stacking vectors into a matrix

  42 Solvers

• Create a vector of the first n odd numbers (★)

  136 Solvers

• Magnitude of a vector (★★★)

  83 Solvers

• Sum of elements of a vector (★★★)

  89 Solvers