12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
Arabic to Roman
brainfuck
Catalan Numbers
Catalan’s Constant
Christmas Trees
CSS Colors
573rd549th596th
Cubes
301st369th
Diamonds
Divisors
Emirp Numbers
Emojify
295th325th209th
Evil Numbers
1,028th185th1,461st
Fibonacci
1,829th1,072nd4,525th4,686th
Fizz Buzz
5,593rd704th6,696th7,622nd
Foo Fizz Buzz Bar
Fractions
Happy Numbers
Intersection
473rd441st
Jacobi Symbol
Kolakoski Constant
Kolakoski Sequence
899th844th
Leap Years
1,054th957th831st
Levenshtein Distance
532nd669th383rd
Leyland Numbers
Look and Say
Lucky Tickets
231st353rd316th
Morse Encoder
Niven Numbers
1,106th1,347th1,008th
Niven Numbers (Long)
Odious Numbers
917th162nd1,111th
Ordinal Numbers
631st679th976th
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
1,641st1,439th1,630th
Prime Numbers
Prime Numbers (Long)
1,135th456th
Quine
Recamán
521st388th634th
Rock-paper-scissors-Spock-lizard
Roman to Arabic
Rule 110
Seven Segment
Sierpiński Triangle
Spelling Numbers
Sudoku
Tongue-twisters
United States
307th54th243rd
Vampire Numbers
511th450th563rd
Van Eck Sequence
λ
894th263rd749th
π
237th321st
τ
227th302nd
φ
341st453rd1,053rd
√2
270th465th
𝑒
636th643rd1,199th