12 Days of Christmas
641
Abundant Numbers
756
712
839
Abundant Numbers (Long)
898
Christmas Trees
764
Collatz
838
Diamonds
321
Divisors
789
722
Emirp Numbers
505
Emirp Numbers (Long)
612
Emojify
190
Evil Numbers
714
Fibonacci
613
679
688
Fizz Buzz
831
933
948
487
857
879
826
978
864
640
340
806
973
976
711
1,000
903
806
917
931
836
955
824
983
1,000
980
825
388
893
986Intersection
384
547
Leap Years
711
672
779
ln 2
697
Niven Numbers
595
Odious Numbers
769
Pernicious Numbers
561
Prime Numbers
642
476
693
Prime Numbers (Long)
744
Quine
867
396
370
513
378
957
455
930
90
1,000
672
194
793
618
939
862
985
441Recamán
639
628
Rock-paper-scissors-Spock-lizard
335
Sierpiński Triangle
99
101
Sudoku
304
Tongue-twisters
514
Vampire Numbers
358
π
110
178
φ
707
√2
710