Abundant Numbers
15th40th31st13th222nd24th12th780th23rd
Abundant Numbers (Long)
17th42nd26th14th116th19th12th397th16th
Collatz
18th42nd30th16th234th31st11th381st10th
Diamonds
22nd19th
4th7th50th10th
Divisors
18th58th27th20th343rd79th21st1,205th47th
Evil Numbers
11th31st36th12th53rd6th1st1st10th
Evil Numbers (Long)
11th37th34th11th68th17th12th33rd7th
Farey Sequence
15th
8th
Fibonacci
24th
71st22nd291st108th
866th32nd
Fizz Buzz
29th56th62nd12th1,052nd85th10th1,478th41st
Gijswijt’s Sequence
8th23rd5th5th30th5th8th63rd6th
Happy Numbers
11th
28th17th140th27th
13th
Happy Numbers (Long)
10th32nd29th11th79th22nd9th210th9th
Leap Years
12th36th27th8th195th19th4th161st8th
Niven Numbers
15th42nd35th17th191st32nd1st230th1st
Niven Numbers (Long)
17th43rd31st16th122nd18th8th347th8th
Odious Numbers
12th29th35th12th
6th1st1st10th
Odious Numbers (Long)
11th28th34th11th64th18th12th1st7th
Pascal’s Triangle
12th45th16th11th126th17th7th457th13th
Pernicious Numbers
29th
27th1st65th17th
Pernicious Numbers (Long)
13th29th14th9th49th12th3rd74th9th
Prime Numbers
15th48th43rd16th200th35th18th523rd27th
Prime Numbers (Long)
20th38th27th13th105th23rd8th173rd15th
Sierpiński Triangle
3rd22nd8th4th14th14th4th68th5th