# Python Program to Print Left Pascals Number Triangle

Write a Python program to print left pascals number triangle using for loop.

```rows = int(input("Enter Left Pascals Number Triangle Pattern Rows = "))

print("====Left Pascals Number Triangle Pattern====")

for i in range(1, rows + 1):
for j in range(i, rows):
print(end = '  ')
for k in range(1, i + 1):
print(k, end = ' ')
print()

for i in range(rows, 0, -1):
for j in range(i, rows + 1):
print(end = '  ')
for k in range(1, i):
print(k, end = ' ')
print()```

This Python example prints the left pascals number triangle using a while loop.

```rows = int(input("Enter Left Pascals Number Triangle Pattern Rows = "))

print("====Left Pascals Number Triangle Pattern====")
i = 1
while(i <= rows):

j = i
while(j < rows):
print(end = '  ')
j = j + 1

k = 1
while(k <= i):
print(k, end = ' ')
k = k + 1
print()
i = i + 1

i = rows
while(i >= 1):
j = i
while(j <= rows):
print(end = '  ')
j = j + 1

k = 1
while(k < i):
print(k, end = ' ')
k = k + 1
print()
i = i - 1```
``````Enter Left Pascals Number Triangle Pattern Rows = 9
====Left Pascals Number Triangle Pattern====
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
1 2 3 4 5 6
1 2 3 4 5 6 7
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7
1 2 3 4 5 6
1 2 3 4 5
1 2 3 4
1 2 3
1 2
1 ``````