horizontal number pyramid pattern

number_pattern.py

x = int(input())
arr = []
k = 1
for i in range(x):
    for j in range(i+1):
        arr.append(str(k))
        k += 1
print(arr)
t = iter(arr)
arr2 = []
for i in range(x):
    arr2.append(("*".join([next(t) for _ in range(i+1)])))
    #arr2.append(("*".join(arr[:i+1])))
print(arr2)
for i in arr2:
    print(i)
for i in arr2[::-1]:
    print(i)