12 Days of Christmas
400
Abundant Numbers
764
Abundant Numbers (Long)
836
Catalan Numbers
930
Christmas Trees
632
Collatz
764
CSS Colors
487
Cubes
414
Divisors
932
Emirp Numbers
885
Emirp Numbers (Long)
643
Evil Numbers
981
Evil Numbers (Long)
950
Fibonacci
934
Fizz Buzz
891
Foo Fizz Buzz Bar
783
Fractions
653
Game of Life
465
Happy Numbers
567
Happy Numbers (Long)
704
Inventory Sequence
805
Kolakoski Sequence
879
Leap Years
847
Leyland Numbers
815
Look and Say
603
Lucky Numbers
734
Niven Numbers
938
Niven Numbers (Long)
901
Odious Numbers
979
Odious Numbers (Long)
971
Ordinal Numbers
642
Pangram Grep
824
Pascal’s Triangle
903
Pernicious Numbers
814
Pernicious Numbers (Long)
868
Prime Numbers
980
Prime Numbers (Long)
972
Quine
946
Recamán
768
Reverse Polish Notation
645
Smith Numbers
571
Tongue-twisters
369
United States
498
Vampire Numbers
637
Van Eck Sequence
824
π
411
τ
403
φ
721
√2
976
𝑒
974
71