12 Days of Christmas
401
Abundant Numbers
481
666
688
brainfuck
356
323
Catalan Numbers
522
Christmas Trees
505
Collatz
697
Cubes
441
Diamonds
223
Divisors
527
597
916
Emirp Numbers
388
Evil Numbers
435
553
522
801
755
Fibonacci
576
815
927
571
938
384
866
Fizz Buzz
609
689
891
Fractions
457
556
532
Happy Numbers
352
468
523
Happy Numbers (Long)
650
Leap Years
683
Leyland Numbers
473
686
Look and Say
457
Niven Numbers
523
744
Odious Numbers
441
521
813
753
Pascal’s Triangle
574
750
Pernicious Numbers
385
686
Prime Numbers
445
561
700
490
654
Quine
946
Recamán
632
Reverse Polish Notation
535
489
Roman to Arabic
399
Rule 110
378
Sierpiński Triangle
280
Smith Numbers
407
Sudoku
329
187
Sudoku (Fill-in)
179
Van Eck Sequence
318
465
√2
630