12 Days of Christmas
881
Abundant Numbers
754
Arabic to Roman
780
Catalan Numbers
863
Christmas Trees
907
Diamonds
670
Divisors
919
Emirp Numbers
618
Evil Numbers
573
597
Fibonacci
947
Fizz Buzz
983
Foo Fizz Buzz Bar
1,000
ISBN
809
Leap Years
741
Niven Numbers
733
Odious Numbers
580
Ordinal Numbers
771
Pascalβs Triangle
857
Prime Numbers
588
Prime Numbers (Long)
629
Quine
969
Rock-paper-scissors-Spock-lizard
784
Seven Segment
804
Van Eck Sequence
778