12 Days of Christmas
549th
99 Bottles of Beer
319th
Abundant Numbers
63rd
Abundant Numbers (Long)
36th
Arithmetic Numbers
145th
Catalan Numbers
1st
Christmas Trees
142nd
Collatz
113th
48th10th51st
Day of Week
94th
Diamonds
168th
Divisors
1st
Emirp Numbers
269th
Emirp Numbers (Long)
132nd
Evil Numbers
261st
Evil Numbers (Long)
172nd
Fibonacci
61st
172nd
69th
Fizz Buzz
68th
Foo Fizz Buzz Bar
1st
Fractions
91st
Gijswijt’s Sequence
121st
Happy Numbers
142nd
Happy Numbers (Long)
178th
Intersection
69th
Inventory Sequence
78th
ISBN
94th
Kolakoski Sequence
121st
Leap Years
62nd
21st
Levenshtein Distance
136th
Leyland Numbers
242nd
10th
ln 2
128th
Look and Say
334th
Lucky Numbers
208th
Lucky Tickets
110th
Medal Tally
8th71st
Niven Numbers
90th
Niven Numbers (Long)
52nd
Number Spiral
150th
Odious Numbers
275th
Odious Numbers (Long)
167th
Ordinal Numbers
96th
Pangram Grep
65th
Pascal’s Triangle
255th
Pernicious Numbers
81st
Pernicious Numbers (Long)
92nd
Prime Numbers
380th
Prime Numbers (Long)
209th
Recamán
134th
Reverse Polish Notation
1st
Seven Segment
361st
Smith Numbers
155th
Sudoku (Fill-in)
54th
Tongue-twisters
203rd
United States
299th
Van Eck Sequence
143rd
Zodiac Signs
112th
𝑒
256th