12 Days of Christmas
168
99 Bottles of Beer
729
Abundant Numbers
793
736785
Abundant Numbers (Long)
871930
Arithmetic Numbers
909
Catalan Numbers
713
Catalan’s Constant
65
Christmas Trees
931670
Collatz
860
765930921833
864951
Day of Week
1,000
Diamonds
657
Divisors
763
655
906806826883
942984
Emirp Numbers
412765
Emirp Numbers (Long)
645
Evil Numbers
730631
766810719
522853
472
Evil Numbers (Long)
789
718
584832
Factorial Factorisation
95
Fibonacci
895945858
554
1,000948981960764933986605659
Fizz Buzz
973
818977
Foo Fizz Buzz Bar
885986
Fractions
688
528687
Happy Numbers
893
Happy Numbers (Long)
759
Kolakoski Sequence
669880
Leap Years
677
755848
Levenshtein Distance
464
Leyland Numbers
762633
Niven Numbers
814935745
955928932810
884921
Niven Numbers (Long)
919
868888
Odious Numbers
817
717
502851
Odious Numbers (Long)
827
716
565830
Ordinal Numbers
848
Pangram Grep
668910
Pascal’s Triangle
923
Pernicious Numbers
682
427814
Prime Numbers
616
745
699
704785
Prime Numbers (Long)
725
Quine
615
654
946
Recamán
604710
Reverse Polish Notation
800
788
Sierpiński Triangle
568
Van Eck Sequence
643
𝑒
59619881818798485544385574794638
385572