12 Days of Christmas
820
99 Bottles of Beer
723
Abundant Numbers
797
Abundant Numbers (Long)
954
Arithmetic Numbers
890
Catalan Numbers
1,000
Christmas Trees
785
Collatz
742
615
986
854
Day of Week
934
Diamonds
638
Divisors
1,000
Emirp Numbers
624
Emirp Numbers (Long)
691
Evil Numbers
909
Evil Numbers (Long)
891
Fibonacci
722
973
747
Fizz Buzz
983
Foo Fizz Buzz Bar
1,000
Fractions
811
Gijswijt’s Sequence
534
Happy Numbers
827
Happy Numbers (Long)
791
Intersection
831
Inventory Sequence
900
ISBN
835
Kolakoski Sequence
867
Leap Years
915
753
Levenshtein Distance
520
Leyland Numbers
802
677
ln 2
803
Look and Say
532
Lucky Numbers
534
Lucky Tickets
632
Medal Tally
728
746
Niven Numbers
957
Niven Numbers (Long)
926
Number Spiral
428
Odious Numbers
851
Odious Numbers (Long)
854
Ordinal Numbers
890
Pangram Grep
935
Pascal’s Triangle
806
Pernicious Numbers
851
Pernicious Numbers (Long)
881
Prime Numbers
816
Prime Numbers (Long)
721
Recamán
859
Reverse Polish Notation
1,000
Seven Segment
424
Smith Numbers
646
Sudoku (Fill-in)
596
Tongue-twisters
647
United States
175
Van Eck Sequence
767
Zodiac Signs
556
𝑒
676