12 Days of Christmas
848
Abundant Numbers
724
Christmas Trees
809
Diamonds
315
Divisors
979
Emirp Numbers
606
Evil Numbers
784
Fibonacci
932
Fizz Buzz
941
Happy Numbers
472
Leap Years
755
Leyland Numbers
602
Morse Decoder
435
Morse Encoder
477
Niven Numbers
933
Odious Numbers
781
Ordinal Numbers
763
Pangram Grep
905
Pascal’s Triangle
972
Pernicious Numbers
683
Prime Numbers
643
Recamán
799
Rock-paper-scissors-Spock-lizard
742
Seven Segment
601
Sierpiński Triangle
729
φ
778
√2
680
𝑒
647