Abundant Numbers
10th
143rd
Abundant Numbers (Long)
6th
88th
Arithmetic Numbers
70th
ASCII Table
4th
169th
Card Number Validation
91st
Catalan Numbers
14th8th
8th
20th
1st
24th
Collatz
7th
3rd
191st
Day of Week
4th
7th
1st
7th14th
71st
22nd
Divisors
52nd19th
1st
38th41st25th
1st
117th
Evil Numbers (Long)
4th
20th33rd
174th
Factorial Factorisation
44th
Farey Sequence
135th
Fibonacci
13th37th49th1st1st25th22nd1st14th19th
34th28th41st
1st72nd1st21st62nd64th
59th
Fractions
3rd
6th
14th
57th
1st
Happy Numbers
185th
Happy Numbers (Long)
76th
Inventory Sequence
78th
ISBN
6th
Leap Years
12th
17th
52nd
Look and Say
3rd
8th4th
16th
1st31st98th
15th
Medal Tally
5th
107th
Niven Numbers (Long)
3rd
26th
59th
Number Spiral
170th
Odious Numbers
1st
151st
Odious Numbers (Long)
5th
1st31st
107th
Ordinal Numbers
6th
268th
23rd
Pangram Grep
9th
10th
116th
Pascal’s Triangle
37th
43rd
Pernicious Numbers
1st
181st
Pernicious Numbers (Long)
3rd
80th
Prime Numbers
1st1st
473rd
Prime Numbers (Long)
1st1st
222nd
Recamán
172nd
ROT13
80th
Scrambled Sort
4th
9th
34th
Smith Numbers
107th
Time Distance
187th
Transpose Sentence
125th
Van Eck Sequence
141st
√2
115th
𝑒
9th7th
5th
5th13th
134th
22nd