Python program to print Floyds triangle

Write a program to print Floyd's triangle as shown below:

1

2  3

4  5  6

7  8  9  10

11 12 13 14 15

x=1
for a in range(1,6):
    for b in range(1,a+1):
        print(x,end=' ')
        x=x+1
    print()

1  

2  3  

4  5  6  

7  8  9  10  

11  12  13  14  15