12 Days of Christmas
188
99 Bottles of Beer
709
Abundant Numbers
532
Abundant Numbers (Long)
588
Arabic to Roman
248
Arithmetic Numbers
628
Arrows
397
Ascending Primes
148
ASCII Table
410
Card Number Validation
635
Catalan Numbers
490
Christmas Trees
145
Collatz
651
CSS Colors
199
Day of Week
694
Divisors
705601
Emirp Numbers
462
Evil Numbers
561980
Evil Numbers (Long)
568949
Factorial Factorisation
515
Farey Sequence
546
Fibonacci
826870960932
Fizz Buzz
711963
Foo Fizz Buzz Bar
692
Forsyth–Edwards Notation
255
Fractions
574
Happy Numbers
629
Happy Numbers (Long)
591
ISBN
604
Leap Years
740
Leyland Numbers
776
ln 2
904
Look and Say
609
Niven Numbers
582
Niven Numbers (Long)
591
Odious Numbers
906976
Odious Numbers (Long)
571968
Ordinal Numbers
534
Pascal’s Triangle
356
Pernicious Numbers
333
Pernicious Numbers (Long)
390
Prime Numbers
480
Prime Numbers (Long)
472
Recamán
575
Set
463
Spelling Numbers
388
United States
71
π
329
τ
312