12 Days of Christmas
883
Abundant Numbers
738
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
680
Intersection
789
ISBN
741
Leap Years
706
Look and Say
436
Niven Numbers
746
Niven Numbers (Long)
814
Number Spiral
470
Odious Numbers
783
Odious Numbers (Long)
766
Ordinal Numbers
839
Prime Numbers
577
Quine
946
φ
727
√2
763
𝑒
757