Abundant Numbers
891
Abundant Numbers (Long)
948
Arabic to Roman
727
Arithmetic Numbers
984
Arrows
851
Ascending Primes
608
brainfuck
772
Card Number Validation
817
Catalan Numbers
898
Collatz
561921781
905
CSS Colors
456
Day of Week
747
Diamonds
737
Divisors
1,000
Emirp Numbers
663
Emirp Numbers (Long)
589
Emojify
494
Evil Numbers
976
Evil Numbers (Long)
976
Factorial Factorisation
773
Farey Sequence
707
Fibonacci
469536836784716854855688
742947335764
Fizz Buzz
964
Foo Fizz Buzz Bar
985
Forsyth–Edwards Notation
771
Fractions
849
Happy Numbers
1,000
Happy Numbers (Long)
718
Intersection
878
Inventory Sequence
630
ISBN
592
Kaprekar Numbers
276
Kolakoski Constant
851
Kolakoski Sequence
944
Leap Years
827
640
Levenshtein Distance
693
Leyland Numbers
713
ln 2
929
Lucky Numbers
571
Lucky Tickets
510
Medal Tally
457
Niven Numbers
815
Niven Numbers (Long)
926
Odious Numbers
976
Odious Numbers (Long)
976
Ordinal Numbers
494
943
1,000
Pangram Grep
953
Pernicious Numbers
784
Pernicious Numbers (Long)
823
Prime Numbers
778
909
Prime Numbers (Long)
978
Quine
969
Repeating Decimals
404
Seven Segment
440
United States
180
π
892
τ
841
φ
912
√2
875
𝑒
716