Emirp Numbers
618
Emirp Numbers (Long)
691
Evil Numbers
889
Evil Numbers (Long)
872
Fibonacci
947
Happy Numbers
590
Happy Numbers (Long)
679
Inventory Sequence
806
ISBN
728
Leap Years
717
Leyland Numbers
716
Niven Numbers
880
Niven Numbers (Long)
758
Odious Numbers
851
Odious Numbers (Long)
837
Pangram Grep
837
Prime Numbers
513
Prime Numbers (Long)
564
RecamΓ‘n
847
Spelling Numbers
406