n = int(input())
a = [1]
print(a)
for i in range(n-1):
b=[]
for i in range(0,len(a)-1):
b.append(a[i]+a[i+1])
b =[1]+ b + [1]
print(b)
a = b
stdin
6
Output:
[1]
[1, 1]
[1, 2, 1]
[1, 3, 3, 1]
[1, 4, 6, 4, 1]
[1, 5, 10, 10, 5, 1]
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