Abundant Numbers
4th
54th
Abundant Numbers (Long)
4th
32nd
Arithmetic Numbers
24th
ASCII Table
2nd
158th
Card Number Validation
79th
Catalan Numbers
14th8th
8th
20th
1st
25th
Collatz
7th
3rd
141st
Day of Week
4th
1st
1st
8th14th
1st
24th
Divisors
52nd19th
1st
39th42nd25th
1st
1st
Evil Numbers (Long)
3rd
21st34th
175th
Factorial Factorisation
29th
Farey Sequence
128th
Fibonacci
13th38th12th1st1st25th23rd1st13th1st
35th28th41st
1st72nd1st21st63rd66th
59th
Fractions
3rd
2nd
14th
1st
1st
Happy Numbers
139th
Happy Numbers (Long)
35th
Inventory Sequence
66th
ISBN
6th
Leap Years
10th
18th
54th
Look and Say
3rd
3rd4th
16th
1st31st59th
9th
Medal Tally
5th
103rd
Niven Numbers (Long)
3rd
27th
42nd
Number Spiral
165th
Odious Numbers
1st
153rd
Odious Numbers (Long)
3rd
1st32nd
109th
Ordinal Numbers
2nd
252nd
23rd
Pangram Grep
9th
10th
60th
Pascal’s Triangle
37th
1st
Pernicious Numbers
1st
185th
Pernicious Numbers (Long)
1st
75th
Prime Numbers
1st1st
455th
Prime Numbers (Long)
1st1st
196th
Recamán
146th
ROT13
57th
Scrambled Sort
4th
9th
7th
Smith Numbers
92nd
Time Distance
188th
Transpose Sentence
115th
Van Eck Sequence
125th
√2
101st
𝑒
9th7th
5th
5th11th
116th
22nd