Abundant Numbers
10th
151st
Abundant Numbers (Long)
6th
96th
Arithmetic Numbers
74th
ASCII Table
4th
178th
Card Number Validation
97th
Catalan Numbers
14th8th
8th
21st
1st
25th
Collatz
8th
198th
Day of Week
4th
8th
1st
11th14th
76th
26th
Divisors
52nd19th
1st
40th42nd25th
1st
120th
Evil Numbers (Long)
4th
21st36th
179th
Factorial Factorisation
49th
Farey Sequence
142nd
Fibonacci
13th39th52nd1st1st26th23rd1st14th22nd
36th28th43rd
1st73rd1st22nd64th66th
59th
Fractions
3rd
6th
14th
61st
1st
Happy Numbers
191st
Happy Numbers (Long)
81st
Inventory Sequence
85th
ISBN
6th
Leap Years
12th
20th
58th
Look and Say
4th
8th4th
17th
1st32nd106th
16th
Medal Tally
5th
112th
Niven Numbers (Long)
3rd
28th
64th
Number Spiral
178th
Odious Numbers
1st
159th
Odious Numbers (Long)
5th
1st35th
113th
Ordinal Numbers
6th
276th
24th
Pangram Grep
10th
122nd
Pascal’s Triangle
39th
47th
Pernicious Numbers
1st
196th
Pernicious Numbers (Long)
3rd
91st
Prime Numbers
1st1st
489th
Prime Numbers (Long)
1st1st
233rd
Recamán
182nd
ROT13
85th
Scrambled Sort
4th
9th
39th
Smith Numbers
112th
Time Distance
194th
Transpose Sentence
135th
Van Eck Sequence
152nd
√2
121st
𝑒
9th7th
5th
5th15th
143rd
22nd