The sum of the first n cubed numbers is the square of the nth triangular number.
Because it is ! The first 10 triangular numbers are... 1,3,6,10,15,21,28,36,45 & 55
The first twelve triangular numbers are: 1 3 6 10 15 21 28 36 45 55 66 78
no No it is not. The first 5 triangular numbers are: 1, 3, 6, 10, 15
The first two triangle numbers are 3 and 6. [Unless you start with 1 as the first.]
The first six triangular numbers are : 1,3,6,10,15,21. However, sometimes the first triangular number is regarded as 0 (zero) so you then have 0,1,3,6,10,15 as the first six triangular numbers.
Triangle numbers or triangular numbers are those numbers that can form an equilateral triangle when counting the objects. The first five triangular numbers are: 1, 3, 6, 10, 15.
The sum of the first n cubed numbers is the square of the nth triangular number.
8,9,5,7,2 and 1
It is 46.
Because it is ! The first 10 triangular numbers are... 1,3,6,10,15,21,28,36,45 & 55
The first twelve triangular numbers are: 1 3 6 10 15 21 28 36 45 55 66 78
no No it is not. The first 5 triangular numbers are: 1, 3, 6, 10, 15
The first two triangle numbers are 3 and 6. [Unless you start with 1 as the first.]
1, 3 and 6
None. There is nobody to whom triangular numbers belong.
1 and 36