12 Days of Christmas
213
Abundant Numbers
581
Abundant Numbers (Long)
729
Arithmetic Numbers
673
Christmas Trees
765
Collatz
886
Cubes
47
Diamonds
479
Fibonacci
858955
Fizz Buzz
754
Foo Fizz Buzz Bar
790
Fractions
459
Happy Numbers
660
Happy Numbers (Long)
749
Hilbert Curve
40
Leap Years
735
ln 2
104
Look and Say
73
Lucky Numbers
14
Mandelbrot
12
Niven Numbers
534
Niven Numbers (Long)
658
Pascal’s Triangle
440
Quine
697
Tongue-twisters
536
Tower of Hanoi
15
Trinomial Triangle
37
γ
496
λ
511
π
111
τ
108
φ
106
√2
108
𝑒
86