12 Days of Christmas
37th
99 Bottles of Beer
28th87th
Abundant Numbers
49th
22nd
18th150th
Abundant Numbers (Long)
6th96th
Arithmetic Numbers
111th
Arrows
319th
Catalan Numbers
227th
Catalan’s Constant
13th
Christmas Trees
3rd256th
Collatz
22nd3rd
25th36th67th18th
14th5th
Day of Week
1st
Diamonds
63rd
Divisors
52nd
63rd
14th89th170th47th
2nd1st
Emirp Numbers
15th15th
Emirp Numbers (Long)
166th
Evil Numbers
82nd68th
10th59th95th
27th321st
46th
Evil Numbers (Long)
11th
59th
17th217th
Factorial Factorisation
185th
Fibonacci
138th43rd129th
51st
1st80th1st1st44th9th1st22nd187th
Fizz Buzz
18th
75th214th
Foo Fizz Buzz Bar
40th20th
Fractions
77th
12th107th
Happy Numbers
53rd
Happy Numbers (Long)
192nd
Hilbert Curve
10th
Kolakoski Sequence
11th13th
Leap Years
22nd
43rd147th
Levenshtein Distance
178th
Leyland Numbers
15th329th
Morse Encoder
66th
Niven Numbers
66th39th55th
30th45th131st33rd
20th149th
Niven Numbers (Long)
26th
15th112th
Odious Numbers
71st
10th
107th
25th157th
Odious Numbers (Long)
52nd
10th
64th
17th159th
Ordinal Numbers
49th
Pangram Grep
23rd121st
Pascal’s Triangle
112th
Pernicious Numbers
29th
37th95th
Prime Numbers
118th
34th
159th
33rd333rd
Prime Numbers (Long)
227th
Quine
137th
115th
75th
Recamán
16th301st
Reverse Polish Notation
53rd
36th
Seven Segment
198th
Sierpiński Triangle
192nd
Van Eck Sequence
208th
𝑒
29th60th22nd9th52nd57th34th14th31st50th36th16th27th23rd13th14th
21st401st40th