12 Days of Christmas
146
99 Bottles of Beer
830
Abundant Numbers
837
Abundant Numbers (Long)
911
Arabic to Roman
316
Arithmetic Numbers
957
Arrows
700
Ascending Primes
226
ASCII Table
488
Card Number Validation
903
Catalan Numbers
755
Christmas Trees
217
Collatz
984
CSS Colors
126
Day of Week
1,000
Divisors
733935
Emirp Numbers
537
Evil Numbers
9701,000
Evil Numbers (Long)
990976
Factorial Factorisation
721
Farey Sequence
885
Fibonacci
8339081,000947
Fizz Buzz
7421,000
Foo Fizz Buzz Bar
922
Forsyth–Edwards Notation
354
Fractions
758
Happy Numbers
884
Happy Numbers (Long)
885
ISBN
823
Leap Years
870
Leyland Numbers
842
ln 2
1,000
Look and Say
888
Niven Numbers
1,000
Niven Numbers (Long)
919
Odious Numbers
9901,000
Odious Numbers (Long)
9901,000
Ordinal Numbers
727
Pascal’s Triangle
577
Pernicious Numbers
587
Pernicious Numbers (Long)
631
Prime Numbers
746
Prime Numbers (Long)
771
Recamán
885
Set
613
Spelling Numbers
497
United States
84
π
500
τ
467