Abundant Numbers
721
721
712
Arabic to Roman
518
649
Christmas Trees
716
Collatz
756
852Cubes
701
Diamonds
847
626
Divisors
822
750
983
Emojify
331
Evil Numbers
784
Fibonacci
793
733
571
706
947
Fizz Buzz
218
390
947
651
679
875
763
443
549
935
657
Happy Numbers
508
Leap Years
711
583
672
Look and Say
556
Morse Encoder
433
Niven Numbers
671
759
Odious Numbers
800
Ordinal Numbers
786
Pascal’s Triangle
761
Pernicious Numbers
404
Prime Numbers
566
755
Quine
969
Rule 110
519
Seven Segment
721
Sierpiński Triangle
450
Tongue-twisters
659
π
87
𝑒
64