12 Days of Christmas
873
99 Bottles of Beer
685
Abundant Numbers
707
Abundant Numbers (Long)
876
Arithmetic Numbers
723
Arrows
244
Christmas Trees
635
Collatz
911
Divisors
490984
Emirp Numbers
611
Emirp Numbers (Long)
687
Emojify
297
Evil Numbers
872
Evil Numbers (Long)
849
Factorial Factorisation
95
Farey Sequence
640
Fibonacci
934
Fizz Buzz
855709977
Foo Fizz Buzz Bar
323
986
Forsyth–Edwards Notation
652
Fractions
661
Happy Numbers
632
Happy Numbers (Long)
727
ISBN
734
Leap Years
815
Look and Say
476
Morse Encoder
252
Niven Numbers
759
Niven Numbers (Long)
828
Number Spiral
247
Odious Numbers
833
Ordinal Numbers
680
Pangram Grep
910
Pascal’s Triangle
835
Pernicious Numbers
798
Prime Numbers
934
Prime Numbers (Long)
701
Quine
946
Recamán
727
Seven Segment
430
Smith Numbers
547
Time Distance
663
Tongue-twisters
487
United States
304
π
329
φ
593
√2
981
𝑒
978