12 Days of Christmas
783
99 Bottles of Beer
716
Abundant Numbers
780
Abundant Numbers (Long)
925
Arithmetic Numbers
850
Catalan Numbers
969
Christmas Trees
767
Collatz
703
574892801
Day of Week
899
Diamonds
620
Divisors
962
Emirp Numbers
600
Emirp Numbers (Long)
640
Evil Numbers
891
Evil Numbers (Long)
867
Fibonacci
701
958
687
Fizz Buzz
973
Foo Fizz Buzz Bar
981
Fractions
787
Gijswijt’s Sequence
509
Happy Numbers
805
Happy Numbers (Long)
764
Intersection
799
Inventory Sequence
863
ISBN
805
Kolakoski Sequence
835
Leap Years
899
589
Levenshtein Distance
499
Leyland Numbers
774
604
ln 2
774
Look and Say
515
Lucky Numbers
504
Lucky Tickets
600
Medal Tally
637708
Niven Numbers
933
Niven Numbers (Long)
895
Number Spiral
411
Odious Numbers
831
Odious Numbers (Long)
827
Ordinal Numbers
854
Pangram Grep
905
Pascal’s Triangle
784
Pernicious Numbers
828
Pernicious Numbers (Long)
850
Prime Numbers
800
Prime Numbers (Long)
701
Recamán
833
Reverse Polish Notation
1,000
Seven Segment
397
Smith Numbers
579
Sudoku (Fill-in)
566
Tongue-twisters
629
United States
155
Van Eck Sequence
739
Zodiac Signs
532
𝑒
656