Abundant Numbers
561
Abundant Numbers (Long)
657
Arabic to Roman
670
Arrows
388
Card Number Validation
502
Christmas Trees
681
Collatz
750
Cubes
449
Day of Week
473
Diamonds
417
Divisors
657
Emojify
361
Evil Numbers
537
Evil Numbers (Long)
531
Fibonacci
932
Fizz Buzz
973
Foo Fizz Buzz Bar
981
Forsyth–Edwards Notation
534
Happy Numbers
465
Happy Numbers (Long)
530
Hexdump
475
Intersection
614
ISBN
601
Look and Say
596
Medal Tally
387
Morse Decoder
308
Morse Encoder
333
Niven Numbers
565
Niven Numbers (Long)
620
Odious Numbers
521
Ordinal Numbers
385
Pangram Grep
830
Pascal’s Triangle
590
Pernicious Numbers
469
Pernicious Numbers (Long)
533
Rock-paper-scissors-Spock-lizard
467
Seven Segment
495
Spelling Numbers
307
Time Distance
623
Tongue-twisters
605
π
294
𝑒
395