To print the following pattern:

Question

Pattern:
1
1 2 1
1 2 3 2 1
1 2 3 4 3 2 1

Figure out suitable loop.

Answer 1

That is not Pascal's triangle

Answer 2

someone calls it "palindrome pyramid pattern":
https://www.faceprep.in/c/palindrome-pyramid-pattern-printing-using-numbers/