🌳 Symmetric Odd Number Tree (Center: 3)
Sum
Center (3)
Other Numbers

🔢 Pattern Explanation:

Row n: Contains (1 + 2n) odd numbers, symmetric around 3

Numbers: Start from (3 - 2n) and increment by 2

Sum: Always equals 3 × (number of terms in row)

Growth: Each row adds one number to each side, forming a pyramid