Abundant Numbers
3rd
48th
Abundant Numbers (Long)
3rd
26th
Arithmetic Numbers
21st
ASCII Table
4th
170th
Catalan Numbers
13th7th
8th
19th
1st
22nd
Collatz
7th
3rd
115th
Day of Week
4th
1st
14th
1st
19th
Divisors
44th17th
1st
35th39th23rd1st
1st
Evil Numbers (Long)
3rd
18th30th
238th
Factorial Factorisation
23rd
Farey Sequence
112th
Fibonacci
12th36th8th1st1st23rd19th1st12th1st31st27th36th1st65th1st19th58th58th
55th
Fractions
3rd
2nd
13th
1st
1st
ISBN
5th
Leap Years
10th
17th
44th
Look and Say
2nd
1st4th16th
π28th47th
9th
Medal Tally
4th
Niven Numbers (Long)
6th
25th
252nd
Number Spiral
147th
Odious Numbers
1st
Odious Numbers (Long)
3rd
1st29th
183rd
Ordinal Numbers
2nd
20th
Pangram Grep
8th
16th
Pascalβs Triangle
34th
1st
Pernicious Numbers
1st
Pernicious Numbers (Long)
1st
Prime Numbers
1st1st
Prime Numbers (Long)
1st1st
RecamΓ‘n
127th
Transpose Sentence
96th
Van Eck Sequence
100th
π
7th7th
5th
5th10th
92nd
19th