12 Days of Christmas
221
Abundant Numbers
625
Abundant Numbers (Long)
795
Arithmetic Numbers
738
Christmas Trees
825
Collatz
Cubes
52
Diamonds
524
Fibonacci
8851,000
Fizz Buzz
779
Foo Fizz Buzz Bar
844
Fractions
506
Happy Numbers
720
Happy Numbers (Long)
830
Hilbert Curve
43
Leap Years
772
ln 2
121
Look and Say
81
Lucky Numbers
16
Mandelbrot
13
Niven Numbers
575
Niven Numbers (Long)
720
Pascal’s Triangle
483
Quine
738
Tongue-twisters
548
Trinomial Triangle
42
γ
559
λ
558
π
122
τ
122
φ
121
√2
123
𝑒
96