Abundant Numbers
9th
132nd
Abundant Numbers (Long)
5th
79th
Arithmetic Numbers
58th
ASCII Table
4th
150th
Card Number Validation
77th
Catalan Numbers
13th7th
8th
19th
1st
22nd
Collatz
7th
3rd
167th
Day of Week
4th
7th
6th14th
59th
20th
Divisors
46th18th
1st
36th39th23rd
1st
104th
Evil Numbers (Long)
4th
18th30th
154th
Factorial Factorisation
39th
Farey Sequence
125th
Fibonacci
12th37th47th1st1st23rd19th1st13th18th32nd27th37th
1st66th1st19th59th59th
55th
Fractions
3rd
5th
13th
53rd
1st
Happy Numbers
168th
Happy Numbers (Long)
70th
Inventory Sequence
68th
ISBN
5th
Leap Years
11th
17th
45th
Look and Say
2nd
7th4th16th
π29th93rd
14th
Medal Tally
4th
98th
Niven Numbers (Long)
3rd
25th
49th
Number Spiral
157th
Odious Numbers
1st
136th
Odious Numbers (Long)
5th
1st29th
91st
Ordinal Numbers
5th
254th
20th
Pangram Grep
8th
10th
187th
Pascalβs Triangle
34th
36th
Pernicious Numbers
1st
165th
Pernicious Numbers (Long)
3rd
68th
Prime Numbers
1st1st
446th
Prime Numbers (Long)
1st1st
201st
RecamΓ‘n
159th
ROT13
53rd
Scrambled Sort
4th
8th
23rd
Smith Numbers
96th
Time Distance
171st
Transpose Sentence
109th
Van Eck Sequence
121st
π
9th7th
5th
5th12th
115th
21st