12 Days of Christmas
368
Abundant Numbers
616
358
688
528
Christmas Trees
672
Collatz
809
753
Cubes
263
DFA Simulator
445
Divisors
510
690
Emirp Numbers
342
Evil Numbers
433
755
Fibonacci
515
613
612
Fizz Buzz
696
359
848
Foo Fizz Buzz Bar
417
Happy Numbers
428
ISBN
662
Leap Years
450
Niven Numbers
654
Odious Numbers
783
Pernicious Numbers
349
Prime Numbers
645
224
577
Proximity Grid
404
Quine
479
946
RecamΓ‘n
427
Reverse Polish Notation
391
β2
498
π
538