Abundant Numbers
675
668
Abundant Numbers (Long)
699
743
Catalan Numbers
954
972
Christmas Trees
664
603
Collatz
844
743
Diamonds
473
Divisors
856
857
Emirp Numbers
545
491
Emirp Numbers (Long)
640
536
Evil Numbers
553
835
Evil Numbers (Long)
557
815
Fibonacci
924
934
Fizz Buzz
954
862
Foo Fizz Buzz Bar
872
730
Fractions
695
633
Happy Numbers
609
567
Happy Numbers (Long)
720
713
Intersection
643
566
ISBN
583
Kolakoski Sequence
489
576
Leap Years
955
864
Leyland Numbers
613
774
Look and Say
516
461
Niven Numbers
742
799
Niven Numbers (Long)
840
869
Odious Numbers
551
851
Odious Numbers (Long)
555
829
Ordinal Numbers
691
676
Pangram Grep
765
715
Pascal’s Triangle
631
840
Pernicious Numbers
406
711
Pernicious Numbers (Long)
483
750
Prime Numbers
744
676
Prime Numbers (Long)
758
725
Quine
673
Recamán
648
779
Reverse Polish Notation
669
519
Time Distance
564
409
Van Eck Sequence
532
√2
456