12 Days of Christmas
78
99 Bottles of Beer
705
Abundant Numbers
655
730753
Abundant Numbers (Long)
862825
Arithmetic Numbers
788
Catalan Numbers
714
Catalan’s Constant
63
Christmas Trees
923583
Collatz
856934
647928918829
857931
Day of Week
1,000
Diamonds
732
Divisors
764
656
906807826883
942985
Emirp Numbers
259886
Emirp Numbers (Long)
537
Evil Numbers
715620
766802719
522854
473
Evil Numbers (Long)
789
719
584833
Factorial Factorisation
76
Fibonacci
876945859
554
1,000948981960764933987606659
Fizz Buzz
784
812891
Foo Fizz Buzz Bar
826970
Fractions
689
528782
Happy Numbers
812
Happy Numbers (Long)
644
Kolakoski Sequence
669912
Leap Years
645
753847
Levenshtein Distance
364
Leyland Numbers
761539
Niven Numbers
810901742
773926928805
874919
Niven Numbers (Long)
769
860886
Odious Numbers
817
717
502852
Odious Numbers (Long)
827
716
565830
Ordinal Numbers
893
Pangram Grep
665772
Pascal’s Triangle
856
Pernicious Numbers
682
427815
Prime Numbers
604
705
699
704785
Prime Numbers (Long)
726
Quine
615
655
946
Recamán
601640
Reverse Polish Notation
800
824
Sierpiński Triangle
540
Van Eck Sequence
609
𝑒
59609881808697465543375474794437
3810367