12 Days of Christmas
216
Abundant Numbers
593
Abundant Numbers (Long)
744
Arithmetic Numbers
686
Christmas Trees
777
Collatz
700
Cubes
48
Diamonds
490
Fibonacci
861961
Fizz Buzz
761
Foo Fizz Buzz Bar
797
Fractions
458
Happy Numbers
672
Happy Numbers (Long)
765
Hilbert Curve
77
Leap Years
741
ln 2
98
Look and Say
74
Lucky Numbers
14
Mandelbrot
12
Niven Numbers
548
Niven Numbers (Long)
676
Pascal’s Triangle
439
Quine
695
Tongue-twisters
536
Trinomial Triangle
37
γ
496
λ
514
π
101
τ
99
φ
99
√2
101
𝑒
81