Pascal's Triangle Calculator

Generate Pascal's Triangle and explore its fascinating mathematical properties.

Triangle Size

Find Specific Value

C(5, 3) =

10

Pascal's Triangle

1
11
121
1331
14641
15101051
1615201561
172135352171

Selected Value

10

Row 5, Position 3

Row 5 Properties

Sum2^5 = 32
Alternating Sum0
Values[1, 5, 10, 10, 5, 1]

Fibonacci Diagonals

Diagonal sums form Fibonacci sequence:

1123581321

Key Properties

  • Each row is symmetric
  • Sum of row n = 2^n
  • Entry (n,k) = C(n,k) = n!/(k!(n-k)!)
  • Each number = sum of two above it
  • Contains triangular, tetrahedral numbers
  • Diagonal sums give Fibonacci sequence

Applications

  • Binomial expansion coefficients
  • Probability calculations
  • Combinatorics problems
  • Number theory patterns