12 Days of Christmas
883
Abundant Numbers
738
Arrows
517
Christmas Trees
717
Collatz
899
Diamonds
561
Divisors
984
Emirp Numbers
569
Evil Numbers
770
Evil Numbers (Long)
753
Fibonacci
606934806
Fizz Buzz
929761
Foo Fizz Buzz Bar
802
Fractions
680
Intersection
789
ISBN
741
Leap Years
706
Look and Say
436
Niven Numbers
746
Niven Numbers (Long)
814
Number Spiral
469
Odious Numbers
783
Odious Numbers (Long)
766
Ordinal Numbers
839
Prime Numbers
577
Quine
946
φ
727
√2
763
𝑒
757