Describe e the pattern that you see in the numbers below

1, 3, 6, 10, 15, 21, 28, 36

The pattern in the numbers is increasing by consecutive integers. Each number is the sum of the previous number and the next consecutive integer.

1 + 2 = 3
3 + 3 = 6
6 + 4 = 10
10 + 5 = 15
15 + 6 = 21
21 + 7 = 28
28 + 8 = 36