Abundant Numbers
174th
73rd
Abundant Numbers (Long)
96th
63rd
Arabic to Roman
40th
Arithmetic Numbers
71st
42nd
Billiards
8th
Christmas Trees
29th
Collatz
171st
60th
Cubes
19th
Diamonds
29th
Divisors
238th
78th
Evil Numbers
85th
Evil Numbers (Long)
64th
Fibonacci
349th100th129th78th45th1,083rd
Fizz Buzz
558th
245th
Fractions
35th
Happy Numbers
39th
Inventory Sequence
34th
Leap Years
23rd205th
61st
21st424th
Niven Numbers
132nd
63rd
Niven Numbers (Long)
69th
53rd
Number Spiral
20th
Odious Numbers
150th
69th
Odious Numbers (Long)
56th
Pascal’s Triangle
41st
Pernicious Numbers
61st
Prime Numbers
74th
Prime Numbers (Long)
72nd
Quine
73rd
Roman to Arabic
25th
ROT13
26th
Seven Segment
34th
Sierpiński Triangle
32nd
Smith Numbers
32nd
26th
Tongue-twisters
69th
40th
Trinomial Triangle
13th
8th