How to create matrix 10x10 with same diagonal vector and empry value

I am new to matlab and i need to create a 10x10 matrix, which consists of same number by diagonal, triangular matrix and empty values (like on image)

Answer 1

[Stephen23]

M = toeplitz([2,1,zeros(1,8)])

M = 10×10

2 1 0 0 0 0 0 0 0 0 1 2 1 0 0 0 0 0 0 0 0 1 2 1 0 0 0 0 0 0 0 0 1 2 1 0 0 0 0 0 0 0 0 1 2 1 0 0 0 0 0 0 0 0 1 2 1 0 0 0 0 0 0 0 0 1 2 1 0 0 0 0 0 0 0 0 1 2 1 0 0 0 0 0 0 0 0 1 2 1 0 0 0 0 0 0 0 0 1 2

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[Ira Wal]

Thank you, Mr. Cobeldick