🧠
Number Sequences
30 free exercises
What comes next? Spot patterns in Fibonacci, primes, powers, factorials and other classic sequences.
▶ Play Free
Medium
Fibonacci Sequence
▶ Play
▶ Play Free
Medium
Powers of Two
▶ Play
▶ Play Free
Medium
Powers of Three
▶ Play
▶ Play Free
Medium
Perfect Cubes
▶ Play
▶ Play Free
Medium
Perfect Squares
▶ Play
▶ Play Free
Medium
Even Numbers
▶ Play
▶ Play Free
Medium
Odd Numbers
▶ Play
▶ Play Free
Medium
Factorials
▶ Play
▶ Play Free
Medium
Prime Numbers
▶ Play
▶ Play Free
Medium
Triangular Numbers
▶ Play
▶ Play Free
Medium
Jacobsthal Sequence
▶ Play
▶ Play Free
Medium
Lucas Numbers
▶ Play
▶ Play Free
Medium
Digits of e
▶ Play
▶ Play Free
Medium
Digits of π
▶ Play
▶ Play Free
Medium
Motzkin Numbers
▶ Play
▶ Play Free
Medium
Catalan Numbers
▶ Play
▶ Play Free
Medium
Double Each Term
▶ Play
▶ Play Free
Medium
Triple Each Term
▶ Play
▶ Play Free
Medium
Add Five
▶ Play
▶ Play Free
Medium
Add Seven
▶ Play
▶ Play Free
Medium
Count Down by 3
▶ Play
▶ Play Free
Medium
Halving Sequence
▶ Play
▶ Play Free
Medium
2ⁿ + 1
▶ Play
▶ Play Free
Medium
Lazy Caterer's Sequence
▶ Play
▶ Play Free
Medium
n^n
▶ Play
▶ Play Free
Medium
Double Factorial of Odd Numbers
▶ Play
▶ Play Free
Medium
Squares of Even Numbers
▶ Play
▶ Play Free
Medium
Increase by Doubling
▶ Play
▶ Play Free
Medium
Natural Numbers
▶ Play
▶ Play Free
Medium