Abundant Numbers
722
761
Abundant Numbers (Long)
912
Arabic to Roman
663
Arrows
447
brainfuck
815
Card Number Validation
792
Christmas Trees
775
CSS Colors
181
Cubes
686
Diamonds
500
Divisors
559905
Emirp Numbers
958
Emojify
376
Evil Numbers
800
Fibonacci
5471,000
Fizz Buzz
967
Forsyth–Edwards Notation
837
Gijswijt’s Sequence
634
Happy Numbers
238
ISBN
820
Kaprekar Numbers
652
Kolakoski Constant
655
Kolakoski Sequence
881
Leap Years
878
Morse Encoder
680
Niven Numbers
957
Odious Numbers
800
Ordinal Numbers
779
Pangram Grep
889
Pascal’s Triangle
720
Pernicious Numbers
816
Prime Numbers
645
Quine
969
Roman to Arabic
331
Seven Segment
627
Sierpiński Triangle
369
Spelling Numbers
384
Zeckendorf Representation
933
λ
246
π
508
φ
609
√2
1,000
𝑒
706