Abundant Numbers
14th40th31st13th216th23rd12th748th22nd
Abundant Numbers (Long)
16th42nd26th14th109th18th12th371st15th
Collatz
16th42nd30th16th221st30th10th357th9th
Diamonds
22nd19th
4th7th47th9th
Divisors
17th58th27th20th340th78th19th1,180th45th
Evil Numbers
10th31st34th12th51st6th1st1st9th
Evil Numbers (Long)
10th37th32nd11th61st14th10th32nd6th
Farey Sequence
14th
8th
Fibonacci
22nd
67th22nd282nd105th
833rd31st
Fizz Buzz
28th54th59th12th1,032nd83rd9th1,446th40th
Gijswijt’s Sequence
7th22nd4th4th29th5th7th56th6th
Happy Numbers
10th
26th17th136th27th
11th
Happy Numbers (Long)
8th32nd27th11th75th22nd9th196th9th
Leap Years
11th36th26th8th191st19th4th153rd8th
Niven Numbers
14th38th34th17th182nd28th1st219th1st
Niven Numbers (Long)
16th41st31st16th116th17th7th330th7th
Odious Numbers
11th29th33rd12th
6th1st1st9th
Odious Numbers (Long)
10th28th32nd11th58th15th10th1st6th
Pascal’s Triangle
11th44th15th10th123rd17th7th445th13th
Pernicious Numbers
28th
26th1st62nd15th
Pernicious Numbers (Long)
11th28th13th9th45th12th3rd67th9th
Prime Numbers
14th47th41st16th194th34th16th505th25th
Prime Numbers (Long)
19th38th26th13th100th22nd8th162nd13th
Sierpiński Triangle
2nd22nd8th4th13th14th4th62nd5th