12 Days of Christmas
740
99 Bottles of Beer
706
Abundant Numbers
822
728
Christmas Trees
649
CSS Colors
225
Diamonds
473
Divisors
825
Emirp Numbers
571679
Evil Numbers
529
524836638
Fibonacci
393810
935847
Fizz Buzz
614
992
929
Happy Numbers
698
Intersection
462
Leap Years
727
757622
Leyland Numbers
553
910
Look and Say
626
Niven Numbers
790
710912
Odious Numbers
532784677
Ordinal Numbers
839
Pangram Grep
749
681792
Pascal’s Triangle
1,000
Pernicious Numbers
687566
Prime Numbers
6781,000761
623844
Quine
1,000968948
947
Recamán
737
Rock-paper-scissors-Spock-lizard
678
Roman to Arabic
559
Rule 110
348
Vampire Numbers
644
π
527
405
τ
649
395
φ
472
699
√2
877
708
𝑒
515
351