Abundant Numbers
688
743
Arabic to Roman
601
ASCII Table
539
Catalan Numbers
246
Christmas Trees
701
696
Collatz
842
Cubes
563
416
Diamonds
462
395
Divisors
890
921
Emirp Numbers
500
Evil Numbers
727
774
Fibonacci
657
746
Fizz Buzz
341
768
617
Foo Fizz Buzz Bar
705
638
Fractions
625
Happy Numbers
542
Happy Numbers (Long)
623
Intersection
685
ISBN
693
Jacobi Symbol
567
Kolakoski Sequence
487
Leap Years
662
827
Leyland Numbers
815
Look and Say
594
Lucky Numbers
493
Lucky Tickets
286
Morse Decoder
362
Morse Encoder
340
Niven Numbers
733
524
Number Spiral
399
Odious Numbers
739
797
Odious Numbers (Long)
737
Ordinal Numbers
646
Pangram Grep
729
Pascal’s Triangle
492
Pernicious Numbers
372
Poker
465
Prime Numbers
577
623
Prime Numbers (Long)
611
660
Recamán
578
Rock-paper-scissors-Spock-lizard
530
Roman to Arabic
400
Rule 110
407
Sierpiński Triangle
530
317
Smith Numbers
529
Sudoku
312
Sudoku (Fill-in)
226
Vampire Numbers
703
Van Eck Sequence
514
λ
392
439
π
374
τ
378
φ
469
√2
441
𝑒
381