Abundant Numbers
166th
68th
Abundant Numbers (Long)
91st
61st
Arabic to Roman
40th
Arithmetic Numbers
64th
43rd
Billiards
6th
Christmas Trees
28th
Collatz
166th
59th
Cubes
19th
Diamonds
27th
Divisors
231st
77th
Evil Numbers
81st
Evil Numbers (Long)
62nd
Fibonacci
334th93rd124th43rd1,068th
Fizz Buzz
536th
239th
Fractions
38th
Happy Numbers
38th
Inventory Sequence
32nd
Leap Years
21st200th
57th20th422nd
Niven Numbers
129th
61st
Niven Numbers (Long)
66th
52nd
Number Spiral
21st
Odious Numbers
143rd
65th
Odious Numbers (Long)
53rd
Pascal’s Triangle
41st
Pernicious Numbers
58th
Prime Numbers
74th
Prime Numbers (Long)
71st
Quine
71st
Roman to Arabic
25th
ROT13
23rd
Seven Segment
34th
Sierpiński Triangle
31st
Smith Numbers
32nd
25th
Tongue-twisters
68th
39th
Trinomial Triangle
10th
5th