12 Days of Christmas
183rd
99 Bottles of Beer
333rd
Abundant Numbers
167th
brainfuck
Christmas Trees
122nd
Diamonds
86th
Divisors
207th
Emirp Numbers
177th
Evil Numbers
288th
Fibonacci
452nd
Fizz Buzz
1st
Happy Numbers
192nd
Leap Years
409th
Niven Numbers
168th
Odious Numbers
227th
Pangram Grep
Pascal’s Triangle
187th
Pernicious Numbers
129th
Prime Numbers
271st
Roman to Arabic
110th
Seven Segment
102nd
Sierpiński Triangle
98th
Spelling Numbers
λ
113th
π
261st
τ
98th
φ
107th
√2
91st
𝑒
90th