12 Days of Christmas
877
Abundant Numbers
535
706
729
brainfuck
387
528
Catalan Numbers
537
Christmas Trees
590
Collatz
850
Cubes
640
Diamonds
272
Divisors
545
629
983
Emirp Numbers
489
Evil Numbers
464
609
556
866
769
Fibonacci
605
852
988
593
979
400
878
Fizz Buzz
629
714
983
Fractions
492
611
646
Happy Numbers
503
585
689
Happy Numbers (Long)
791
Leap Years
694
Leyland Numbers
507
830
Look and Say
578
Niven Numbers
553
759
Odious Numbers
472
556
875
769
Pascal’s Triangle
617
831
Pernicious Numbers
414
702
Prime Numbers
473
607
807
518
667
Quine
969
Recamán
718
Reverse Polish Notation
608
712
Roman to Arabic
544
Rule 110
452
Sierpiński Triangle
309
Smith Numbers
575
Sudoku
278
318
Sudoku (Fill-in)
288
Van Eck Sequence
349
509
√2
645