99 Bottles of Beer
723
Abundant Numbers
738
Catalan Numbers
891
Collatz
899
Diamonds
592
Divisors
850
Emirp Numbers
589
Evil Numbers
957
Fibonacci
860809934
Fizz Buzz
993
Happy Numbers
486
Kolakoski Sequence
879
Leap Years
815
Look and Say
575
Niven Numbers
698
Odious Numbers
851
Ordinal Numbers
766
Pangram Grep
886
Pascal’s Triangle
612
Pernicious Numbers
724
Prime Numbers
654
Quine
946
Recamán
805
Roman to Arabic
645