12 Days of Christmas
400
Abundant Numbers
727
Abundant Numbers (Long)
785
Arabic to Roman
788
Arithmetic Numbers
768
Arrows
311
Ascending Primes
383
ASCII Table
555
Billiards
539
brainfuck
395
Card Number Validation
544
Catalan Numbers
927
Christmas Trees
669
Collatz
779
CSS Colors
169
Cubes
339
Day of Week
772
Diamonds
514
Divisors
911
Emirp Numbers
882
Emirp Numbers (Long)
516
Evil Numbers
891
Evil Numbers (Long)
848
Factorial Factorisation
435
Farey Sequence
671
Fibonacci
933
Fizz Buzz
890
Foo Fizz Buzz Bar
781
Fractions
825
Gijswijt’s Sequence
514
Happy Numbers
794
Happy Numbers (Long)
670
Intersection
574
Inventory Sequence
830
Leap Years
845
Levenshtein Distance
468
Leyland Numbers
731
ln 2
910
Look and Say
510
Mandelbrot
534
Niven Numbers
933
Niven Numbers (Long)
848
Number Spiral
201
Odious Numbers
908
Odious Numbers (Long)
845
Ordinal Numbers
653
Partition Numbers
480
Pascal’s Triangle
811
Pernicious Numbers
795
Pernicious Numbers (Long)
890
Prime Numbers
956
Prime Numbers (Long)
971
Recamán
742
Scrambled Sort
696
Set
551
Sierpiński Triangle
717
Smith Numbers
412
Tic-tac-toe
409
Tongue-twisters
429
Topological Sort
435
Transpose Sentence
550
United States
209
Van Eck Sequence
824
Zeckendorf Representation
560
π
405
τ
396
φ
721
√2
952
𝑒
950