99 Bottles of Beer
656
Abundant Numbers
738
Arabic to Roman
415
Christmas Trees
813
Diamonds
706
Divisors
905
Emirp Numbers
622
Evil Numbers
872
Fibonacci
934
Fizz Buzz
976
Happy Numbers
706
Leap Years
921
813
921
Look and Say
620
Niven Numbers
787
Odious Numbers
851
Ordinal Numbers
781
Pangram Grep
909
Pascal’s Triangle
907
Pernicious Numbers
724
Prime Numbers
654
Quine
844239
467
692
946827321
Recamán
727
Roman to Arabic
110
Seven Segment
521
Tongue-twisters
498
π
635
φ
727
√2
90
4261
769
130278846981
13213676