12 Days of Christmas
93rd
Abundant Numbers
178th
78th
Abundant Numbers (Long)
97th
66th
Arabic to Roman
42nd
Arithmetic Numbers
72nd
46th
Billiards
8th
Christmas Trees
30th
Collatz
178th
65th
Cubes
19th
Diamonds
30th
Divisors
241st
81st
Evil Numbers
89th
Evil Numbers (Long)
65th
Fibonacci
359th102nd131st78th45th1,093rd
Fizz Buzz
564th
249th
Fractions
35th
Happy Numbers
41st
Inventory Sequence
34th
Leap Years
23rd211th
63rd
21st436th
Niven Numbers
133rd
64th
Niven Numbers (Long)
72nd
55th
Number Spiral
23rd
Odious Numbers
151st
71st
Odious Numbers (Long)
57th
Pascal’s Triangle
41st
Pernicious Numbers
62nd
Prime Numbers
78th
Prime Numbers (Long)
75th
Quine
75th
Roman to Arabic
25th
ROT13
26th
Seven Segment
34th
Sierpiński Triangle
32nd
Smith Numbers
32nd
27th
Tongue-twisters
72nd
42nd
Tower of Hanoi
28th
Trinomial Triangle
14th
8th