12 Days of Christmas
866
99 Bottles of Beer
665
Abundant Numbers
738
743
Abundant Numbers (Long)
875
Arabic to Roman
590
Arithmetic Numbers
787
ASCII Table
686
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Catalan Numbers
690
Catalan’s Constant
606
Christmas Trees
670
668
Collatz
899
Day of Week
782
Diamonds
691
Divisors
919
933
Emirp Numbers
765
Emirp Numbers (Long)
668
Evil Numbers
785
Evil Numbers (Long)
739
Factorial Factorisation
574
Fibonacci
934
795
Fizz Buzz
944
761
Foo Fizz Buzz Bar
779
Fractions
505
Happy Numbers
225
441
414
625
398
770
530
422
538
416
111
560
526
402
642
459
212
388
558
415
892
327
417
635
723
455
482
476
Happy Numbers (Long)
567
Intersection
755
Leap Years
815
839
Leyland Numbers
815
ln 2
765
Look and Say
636
Morse Decoder
Niven Numbers
759
Niven Numbers (Long)
669
Odious Numbers
783
Odious Numbers (Long)
765
Ordinal Numbers
773
Pangram Grep
787
Pascal’s Triangle
711
Pernicious Numbers
651
Prime Numbers
292
784
Prime Numbers (Long)
679
Quine
946
356
Recamán
718
Rule 110
417
Seven Segment
567
Sierpiński Triangle
455
Tongue-twisters
750
United States
220
Vampire Numbers
739
Van Eck Sequence
495
λ
230
π
588
τ
573
φ
846
√2
874
𝑒
745