Abundant Numbers
639
686
660
Arabic to Roman
395
451
Christmas Trees
676
Collatz
718
Cubes
463
Diamonds
792
513
Divisors
796
699
917
Emojify
367
Evil Numbers
770
Fibonacci
756
665
720550
935
Fizz Buzz
379929625422464865726533848637
Happy Numbers
386
Leap Years
688
545
662
Look and Say
502
Morse Encoder
289
Niven Numbers
645
745
Odious Numbers
784
Ordinal Numbers
615
Pascal’s Triangle
687
Pernicious Numbers
395
Prime Numbers
519
741
Quine
947
Rule 110
435
Seven Segment
508
Sierpiński Triangle
417
Tongue-twisters
369
π
187
𝑒
154