Abundant Numbers
3rd
50th
Abundant Numbers (Long)
3rd
26th
Arithmetic Numbers
20th
ASCII Table
2nd
140th
Card Number Validation
66th
Catalan Numbers
13th7th
8th
19th
1st
22nd
Collatz
7th
3rd
119th
Day of Week
4th
1st
6th14th
1st
20th
Divisors
46th18th
1st
36th39th23rd
1st
1st
Evil Numbers (Long)
3rd
18th30th
154th
Factorial Factorisation
23rd
Farey Sequence
118th
Fibonacci
12th37th8th1st1st23rd19th1st12th1st32nd27th37th
1st66th1st19th59th59th
55th
Fractions
3rd
2nd
13th
1st
1st
Happy Numbers
120th
Happy Numbers (Long)
27th
Inventory Sequence
55th
ISBN
5th
Leap Years
10th
17th
45th
Look and Say
2nd
3rd4th16th
π29th53rd
9th
Medal Tally
4th
92nd
Niven Numbers (Long)
3rd
25th
34th
Number Spiral
149th
Odious Numbers
1st
136th
Odious Numbers (Long)
3rd
1st29th
91st
Ordinal Numbers
2nd
238th
20th
Pangram Grep
8th
10th
161st
Pascalβs Triangle
34th
1st
Pernicious Numbers
1st
165th
Pernicious Numbers (Long)
1st
56th
Prime Numbers
1st1st
424th
Prime Numbers (Long)
1st1st
174th
RecamΓ‘n
132nd
ROT13
31st
Scrambled Sort
4th
8th
5th
Smith Numbers
83rd
Time Distance
170th
Transpose Sentence
99th
Van Eck Sequence
101st
π
9th7th
5th
5th10th
93rd
21st