Abundant Numbers
449
660680
Abundant Numbers (Long)
670
Arithmetic Numbers
514
689752
Catalan Numbers
691
Christmas Trees
537
Collatz
675
650768
CSS Colors
100
Day of Week
662
Divisors
675
844831
Emojify
336
Evil Numbers
500
756603
Fibonacci
720
790545
Fizz Buzz
939
848
Foo Fizz Buzz Bar
854393715402
Leap Years
622
632
ln 2
657
Morse Encoder
147
Odious Numbers
498
726606
Pangram Grep
369
Prime Numbers
625
538
Prime Numbers (Long)
572
Recamán
508
Seven Segment
295
Tongue-twisters
320
United States
108
√2
705