12 Days of Christmas
37th
99 Bottles of Beer
28th85th
Abundant Numbers
49th
22nd
18th148th
Abundant Numbers (Long)
6th95th
Arithmetic Numbers
110th
Arrows
318th
Catalan Numbers
227th
Catalan’s Constant
13th
Christmas Trees
3rd253rd
Collatz
22nd3rd
24th35th66th16th
14th5th
Day of Week
1st
Diamonds
61st
Divisors
52nd
63rd
14th88th170th47th
2nd1st
Emirp Numbers
15th15th
Emirp Numbers (Long)
165th
Evil Numbers
82nd68th
10th59th95th
27th320th
46th
Evil Numbers (Long)
11th
58th
17th215th
Factorial Factorisation
184th
Fibonacci
138th43rd128th
50th
1st76th1st1st44th9th1st21st187th
Fizz Buzz
18th
75th212th
Foo Fizz Buzz Bar
40th19th
Fractions
77th
12th104th
Happy Numbers
53rd
Happy Numbers (Long)
192nd
Hilbert Curve
10th
Kolakoski Sequence
11th13th
Leap Years
22nd
43rd147th
Levenshtein Distance
177th
Leyland Numbers
15th326th
Morse Encoder
66th
Niven Numbers
66th38th55th
30th44th131st33rd
20th149th
Niven Numbers (Long)
26th
15th111th
Odious Numbers
71st
10th
107th
25th156th
Odious Numbers (Long)
52nd
10th
64th
17th158th
Ordinal Numbers
47th
Pangram Grep
23rd120th
Pascal’s Triangle
111th
Pernicious Numbers
28th
36th95th
Prime Numbers
116th
34th
158th
32nd331st
Prime Numbers (Long)
226th
Quine
137th
113th
74th
Recamán
16th297th
Reverse Polish Notation
52nd
36th
Seven Segment
198th
Sierpiński Triangle
190th
Van Eck Sequence
204th
𝑒
29th60th22nd9th52nd57th34th14th31st50th36th16th27th23rd13th14th
21st399th40th