Abundant Numbers
5th
58th
Abundant Numbers (Long)
4th
34th
Arithmetic Numbers
25th
ASCII Table
3rd
164th
Card Number Validation
85th
Catalan Numbers
14th8th
8th
21st
1st
25th
Collatz
7th
147th
Day of Week
4th
1st
1st
11th14th
1st
26th
Divisors
52nd19th
1st
40th42nd25th
1st
1st
Evil Numbers (Long)
3rd
21st36th
179th
Factorial Factorisation
29th
Farey Sequence
134th
Fibonacci
13th39th14th1st1st26th23rd1st13th1st
36th28th43rd
1st73rd1st22nd64th66th
59th
Fractions
3rd
2nd
14th
1st
1st
Happy Numbers
145th
Happy Numbers (Long)
35th
Inventory Sequence
71st
ISBN
6th
Leap Years
10th
20th
58th
Look and Say
4th
3rd4th
17th
1st32nd69th
10th
Medal Tally
5th
107th
Niven Numbers (Long)
3rd
28th
47th
Number Spiral
172nd
Odious Numbers
1st
159th
Odious Numbers (Long)
3rd
1st35th
113th
Ordinal Numbers
2nd
259th
24th
Pangram Grep
9th
63rd
Pascal’s Triangle
39th
1st
Pernicious Numbers
1st
195th
Pernicious Numbers (Long)
1st
81st
Prime Numbers
1st1st
466th
Prime Numbers (Long)
1st1st
204th
Recamán
156th
ROT13
65th
Scrambled Sort
4th
9th
7th
Smith Numbers
96th
Time Distance
193rd
Transpose Sentence
123rd
Van Eck Sequence
131st
√2
106th
𝑒
9th7th
5th
5th13th
123rd
22nd