12 Days of Christmas
404
Abundant Numbers
500
706
700
brainfuck
387
332
Catalan Numbers
537
Christmas Trees
514
Collatz
713
Cubes
449
Diamonds
228
Divisors
545
629
931
Emirp Numbers
396
Evil Numbers
455
591
556
857
769
Fibonacci
592
852
975
593
979
400
878
Fizz Buzz
629
714
898
Fractions
492
611
549
Happy Numbers
369
496
533
Happy Numbers (Long)
670
Leap Years
694
Leyland Numbers
507
705
Look and Say
469
Niven Numbers
553
759
Odious Numbers
463
556
875
769
Pascal’s Triangle
617
769
Pernicious Numbers
405
702
Prime Numbers
464
598
754
518
667
Quine
969
Recamán
647
Reverse Polish Notation
608
516
Roman to Arabic
411
Rule 110
386
Sierpiński Triangle
286
Smith Numbers
420
Sudoku
365
191
Sudoku (Fill-in)
186
Van Eck Sequence
349
482
√2
645