Abundant Numbers
10th
141st
Abundant Numbers (Long)
6th
86th
Arithmetic Numbers
68th
ASCII Table
4th
166th
Card Number Validation
91st
Catalan Numbers
14th8th
8th
20th
1st
23rd
Collatz
7th
3rd
188th
Day of Week
4th
7th
1st
7th14th
69th
22nd
Divisors
49th19th
1st
38th41st25th
1st
115th
Evil Numbers (Long)
4th
20th33rd
173rd
Factorial Factorisation
41st
Farey Sequence
133rd
Fibonacci
13th37th48th1st1st25th21st1st14th19th
34th28th41st
1st70th1st20th62nd62nd
57th
Fractions
3rd
5th
14th
56th
1st
Happy Numbers
181st
Happy Numbers (Long)
75th
Inventory Sequence
78th
ISBN
6th
Leap Years
12th
17th
51st
Look and Say
3rd
7th4th
16th
1st30th98th
15th
Medal Tally
5th
107th
Niven Numbers (Long)
3rd
26th
57th
Number Spiral
169th
Odious Numbers
1st
148th
Odious Numbers (Long)
5th
1st31st
104th
Ordinal Numbers
5th
266th
23rd
Pangram Grep
9th
10th
112th
Pascal’s Triangle
37th
41st
Pernicious Numbers
1st
179th
Pernicious Numbers (Long)
3rd
77th
Prime Numbers
1st1st
470th
Prime Numbers (Long)
1st1st
218th
Recamán
170th
ROT13
78th
Scrambled Sort
4th
9th
33rd
Smith Numbers
106th
Time Distance
185th
Transpose Sentence
120th
Van Eck Sequence
137th
√2
113th
𝑒
9th7th
5th
5th13th
132nd
21st