Abundant Numbers
13th40th30th12th203rd23rd12th183rd22nd
Abundant Numbers (Long)
14th42nd25th13th101st17th12th98th15th
Collatz
16th40th29th16th205th28th10th68th9th
Diamonds
24th16th
4th7th30th9th
Divisors
15th56th25th18th326th73rd18th739th45th
Evil Numbers
8th29th33rd11th50th6th6th1st9th
Evil Numbers (Long)
8th37th32nd10th59th14th10th32nd6th
Farey Sequence
13th
6th
Fibonacci
22nd
63rd20th272nd97th
802nd30th
Fizz Buzz
25th53rd57th10th996th83rd9th1,067th40th
Gijswijt’s Sequence
7th23rd4th4th30th5th7th26th6th
Happy Numbers
9th
26th16th133rd26th
11th
Happy Numbers (Long)
8th33rd26th11th74th20th9th55th9th
Leap Years
9th32nd25th7th183rd18th4th144th8th
Niven Numbers
12th36th31st14th172nd28th1st208th6th
Niven Numbers (Long)
16th42nd29th15th105th16th6th185th6th
Odious Numbers
10th28th33rd11th
6th6th1st9th
Odious Numbers (Long)
8th27th32nd10th56th15th10th1st6th
Pascal’s Triangle
11th44th14th9th118th16th7th251st13th
Pernicious Numbers
26th
25th1st57th14th
Pernicious Numbers (Long)
10th30th13th8th42nd11th2nd43rd9th
Prime Numbers
13th45th39th15th188th34th16th383rd25th
Prime Numbers (Long)
16th36th26th12th92nd22nd7th153rd12th
Sierpiński Triangle
2nd27th9th4th13th13th4th36th5th