Abundant Numbers
10th
145th
Abundant Numbers (Long)
6th
92nd
Arithmetic Numbers
71st
ASCII Table
4th
171st
Card Number Validation
93rd
Catalan Numbers
14th8th
8th
20th
1st
25th
Collatz
7th
3rd
193rd
Day of Week
4th
7th
1st
8th14th
72nd
24th
Divisors
52nd19th
1st
39th42nd25th
1st
118th
Evil Numbers (Long)
4th
21st34th
175th
Factorial Factorisation
48th
Farey Sequence
136th
Fibonacci
13th38th50th1st1st25th23rd1st14th20th
35th28th41st
1st72nd1st21st63rd66th
59th
Fractions
3rd
6th
14th
58th
1st
Happy Numbers
186th
Happy Numbers (Long)
81st
Inventory Sequence
80th
ISBN
6th
Leap Years
12th
18th
54th
Look and Say
3rd
8th4th
16th
1st31st100th
15th
Medal Tally
5th
108th
Niven Numbers (Long)
3rd
27th
60th
Number Spiral
172nd
Odious Numbers
1st
153rd
Odious Numbers (Long)
5th
1st32nd
109th
Ordinal Numbers
6th
269th
23rd
Pangram Grep
9th
10th
116th
Pascal’s Triangle
37th
44th
Pernicious Numbers
1st
185th
Pernicious Numbers (Long)
3rd
85th
Prime Numbers
1st1st
477th
Prime Numbers (Long)
1st1st
224th
Recamán
173rd
ROT13
81st
Scrambled Sort
4th
9th
37th
Smith Numbers
108th
Time Distance
189th
Transpose Sentence
127th
Van Eck Sequence
144th
√2
116th
𝑒
9th7th
5th
5th13th
136th
22nd