99 Bottles of Beer
413
Abundant Numbers
909
608
721
Arithmetic Numbers
747
Arrows
592
ASCII Table
493
Card Number Validation
479
Christmas Trees
519
Collatz
871
786
713
Divisors
957
731
857
Emojify
378
Evil Numbers
561
976
Farey Sequence
479
Fibonacci
645
854
623
947
Fizz Buzz
841565
955824523855662
Fractions
741
653
ISBN
612
Leyland Numbers
890
838
ln 2
591
Look and Say
606
Niven Numbers
677
800
Number Spiral
371
Odious Numbers
870
Pernicious Numbers
667
Prime Numbers
672
900
952570
Repeating Decimals
526
United States
136
π
418
364
389
𝑒
686