12 Days of Christmas
743
99 Bottles of Beer
706
Abundant Numbers
821
728
Christmas Trees
649
CSS Colors
225
Diamonds
473
Divisors
825
Emirp Numbers
579679
Evil Numbers
528
523835638
Fibonacci
393809
934846
Fizz Buzz
613
992
929
Happy Numbers
698
Intersection
461
Leap Years
744
757622
Leyland Numbers
553
909
Look and Say
625
Niven Numbers
789
710911
Odious Numbers
532783677
Ordinal Numbers
848
Pangram Grep
747
680792
Pascal’s Triangle
1,000
Pernicious Numbers
686565
Prime Numbers
6771,000760
623843
Quine
1,000967947
946
Recamán
736
Rock-paper-scissors-Spock-lizard
678
Roman to Arabic
558
Rule 110
347
Vampire Numbers
642
π
527
405
τ
648
394
φ
471
698
√2
876
707
𝑒
515
350