12 Days of Christmas
390
Abundant Numbers
478
662
686
brainfuck
323
311
Catalan Numbers
520
Christmas Trees
503
Collatz
696
Cubes
422
Diamonds
222
Divisors
523
590
895
Emirp Numbers
387
Evil Numbers
427556
521488
754
Fibonacci
575805927568571381864
Fizz Buzz
602
687
889
Fractions
459561
533
Happy Numbers
350
464
521
Happy Numbers (Long)
648
Leap Years
681
Leyland Numbers
466
681
Look and Say
454
Niven Numbers
517
740
Odious Numbers
423
517502
751
Pascal’s Triangle
571
748
Pernicious Numbers
383
683
Prime Numbers
445563701490
654
Quine
945
Recamán
628
Reverse Polish Notation
536
492
Roman to Arabic
397
Rule 110
373
Sierpiński Triangle
277
Smith Numbers
405
Sudoku
316
187
Sudoku (Fill-in)
180
Van Eck Sequence
316
464
√2
627