12 Days of Christmas
872
Abundant Numbers
516
670
717
brainfuck
349
511
Catalan Numbers
522
Christmas Trees
581
Collatz
831
Cubes
629
Diamonds
267
Divisors
527
597
967
Emirp Numbers
479
Evil Numbers
444569
522809
755
Fibonacci
588815938571938385866
Fizz Buzz
612
693
977
Fractions
457557
625
Happy Numbers
478
552
674
Happy Numbers (Long)
767
Leap Years
683
Leyland Numbers
473
806
Look and Say
562
Niven Numbers
526
746
Odious Numbers
441
521813
753
Pascal’s Triangle
574
809
Pernicious Numbers
393
686
Prime Numbers
453569748490
654
Quine
946
Recamán
701
Reverse Polish Notation
536
674
Roman to Arabic
527
Rule 110
441
Sierpiński Triangle
302
Smith Numbers
553
Sudoku
256
309
Sudoku (Fill-in)
276
Van Eck Sequence
318
491
√2
632