12 Days of Christmas
375
99 Bottles of Beer
411
Abundant Numbers
753
Abundant Numbers (Long)
825
Arithmetic Numbers
738
Catalan Numbers
973
Christmas Trees
672
Collatz
704
579810804
Day of Week
719
Diamonds
523
Divisors
933
Emirp Numbers
496
Emirp Numbers (Long)
557
Evil Numbers
893
Evil Numbers (Long)
869
Fibonacci
722
960
695
Fizz Buzz
891
Foo Fizz Buzz Bar
783
Fractions
669
Gijswijt’s Sequence
424
Happy Numbers
798
Happy Numbers (Long)
652
Intersection
589
Inventory Sequence
821
ISBN
632
Kolakoski Sequence
821
Leap Years
901
674
Levenshtein Distance
393
Leyland Numbers
664
612
ln 2
765
Look and Say
422
Lucky Numbers
491
Lucky Tickets
457
Medal Tally
675539
Niven Numbers
939
Niven Numbers (Long)
903
Number Spiral
336
Odious Numbers
834
Odious Numbers (Long)
831
Ordinal Numbers
707
Pangram Grep
772
Pascal’s Triangle
728
Pernicious Numbers
832
Pernicious Numbers (Long)
841
Prime Numbers
801
Prime Numbers (Long)
702
Recamán
758
Reverse Polish Notation
1,000
Seven Segment
302
Smith Numbers
458
Sudoku (Fill-in)
371
Tongue-twisters
358
United States
115
Van Eck Sequence
702
Zodiac Signs
402
𝑒
660