itself
The square of the second number.
Yes, 1 is a triangular number.
squares
1, the first triangular number, is also a square.
A number, t, is a triangular number if (1 + 8t) is a square of an odd number.
The Nth triangular number is calculated by: N(N + 1) -------- 2 Hope this is useful!
The nth triangular number is n(n+1)/2
The nth triangular number is n(n+1)/2
Yes it does! :)
Yes. 1 is both square and triangular.
1 is a triangular and square number, and it is less than 60.
0, a triangular pryamid (or tetrahedron) is made up of four triangular faces.