12 Days of Christmas
874
99 Bottles of Beer
769
Abundant Numbers
813
Arrows
372
Christmas Trees
733
Divisors
713833
Emirp Numbers
648
Evil Numbers
722912919
784
Fibonacci
768
Fizz Buzz
987
Foo Fizz Buzz Bar
864
Happy Numbers
619
Kolakoski Sequence
555
Leap Years
798
Leyland Numbers
661
Look and Say
595
Niven Numbers
778
Odious Numbers
717920914
766
Pangram Grep
937
Pascal’s Triangle
680
Pernicious Numbers
434
Prime Numbers
776
Prime Numbers (Long)
789
Quine
606
864
Recamán
685
Sierpiński Triangle
246
Tongue-twisters
842
λ
186
𝑒
436
47