12 Days of Christmas
363
99 Bottles of Beer
411
Abundant Numbers
750
Abundant Numbers (Long)
821
Arithmetic Numbers
721
Catalan Numbers
969
Christmas Trees
669
Collatz
703
574779801
Day of Week
721
Diamonds
519
Divisors
911
Emirp Numbers
494
Emirp Numbers (Long)
544
Evil Numbers
891
Evil Numbers (Long)
867
Fibonacci
701
958
687
Fizz Buzz
890
Foo Fizz Buzz Bar
781
Fractions
669
Gijswijt’s Sequence
419
Happy Numbers
794
Happy Numbers (Long)
648
Intersection
578
Inventory Sequence
816
ISBN
630
Kolakoski Sequence
819
Leap Years
899
588
Levenshtein Distance
389
Leyland Numbers
659
604
ln 2
731
Look and Say
418
Lucky Numbers
486
Lucky Tickets
454
Medal Tally
646526
Niven Numbers
933
Niven Numbers (Long)
895
Number Spiral
335
Odious Numbers
831
Odious Numbers (Long)
827
Ordinal Numbers
674
Pangram Grep
768
Pascal’s Triangle
726
Pernicious Numbers
828
Pernicious Numbers (Long)
800
Prime Numbers
800
Prime Numbers (Long)
701
Recamán
752
Reverse Polish Notation
1,000
Seven Segment
297
Smith Numbers
456
Sudoku (Fill-in)
370
Tongue-twisters
357
United States
115
Van Eck Sequence
699
Zodiac Signs
404
𝑒
643