12 Days of Christmas
219th
99 Bottles of Beer
361st
Abundant Numbers
188th
brainfuck
Christmas Trees
133rd
Diamonds
99th
Divisors
222nd
Emirp Numbers
195th
Evil Numbers
315th
Fibonacci
496th
Fizz Buzz
1st
Happy Numbers
206th
Leap Years
437th
Niven Numbers
192nd
Odious Numbers
245th
Pangram Grep
Pascal’s Triangle
201st
Pernicious Numbers
137th
Prime Numbers
291st
Roman to Arabic
125th
Seven Segment
117th
Sierpiński Triangle
110th
Spelling Numbers
λ
130th
π
194th
τ
112th
φ
120th
√2
107th
𝑒
107th