12 Days of Christmas
883
Abundant Numbers
739
Arrows
518
Christmas Trees
718
Collatz
900
Diamonds
562
Divisors
984
Emirp Numbers
569
Evil Numbers
770
Evil Numbers (Long)
754
Fibonacci
607935806
Fizz Buzz
929761
Foo Fizz Buzz Bar
803
Fractions
681
Intersection
790
ISBN
741
Leap Years
706
Look and Say
436
Niven Numbers
747
Niven Numbers (Long)
815
Number Spiral
470
Odious Numbers
784
Odious Numbers (Long)
767
Ordinal Numbers
840
Prime Numbers
577
Quine
946
φ
728
√2
763
𝑒
757