Abundant Numbers
10th
137th
Abundant Numbers (Long)
6th
83rd
Arithmetic Numbers
64th
ASCII Table
4th
159th
Card Number Validation
85th
Catalan Numbers
13th7th
8th
19th
1st
22nd
Collatz
7th
3rd
178th
Day of Week
4th
7th
6th14th
65th
20th
Divisors
46th19th
1st
36th39th23rd
1st
108th
Evil Numbers (Long)
4th
18th30th
165th
Factorial Factorisation
41st
Farey Sequence
129th
Fibonacci
13th37th47th1st1st23rd20th1st13th19th33rd27th39th
1st67th1st19th60th60th
55th
Fractions
3rd
5th
13th
54th
1st
Happy Numbers
177th
Happy Numbers (Long)
74th
Inventory Sequence
72nd
ISBN
6th
Leap Years
11th
17th
49th
Look and Say
3rd
7th4th16th
💎29th95th
15th
Medal Tally
5th
104th
Niven Numbers (Long)
3rd
26th
53rd
Number Spiral
163rd
Odious Numbers
1st
142nd
Odious Numbers (Long)
5th
1st29th
97th
Ordinal Numbers
5th
260th
21st
Pangram Grep
8th
10th
109th
Pascal’s Triangle
34th
41st
Pernicious Numbers
1st
173rd
Pernicious Numbers (Long)
3rd
73rd
Prime Numbers
1st1st
460th
Prime Numbers (Long)
1st1st
209th
Recamán
165th
ROT13
70th
Scrambled Sort
4th
9th
29th
Smith Numbers
101st
Time Distance
178th
Transpose Sentence
117th
Van Eck Sequence
131st
𝑒
9th7th
5th
5th12th
124th
21st