Abundant Numbers
14th40th31st13th217th24th12th757th23rd
Abundant Numbers (Long)
16th42nd26th14th110th19th12th379th16th
Collatz
16th42nd30th16th224th31st11th363rd10th
Diamonds
22nd19th
4th7th49th9th
Divisors
17th58th27th20th341st79th21st1,187th47th
Evil Numbers
10th31st34th12th52nd6th1st1st9th
Evil Numbers (Long)
10th37th32nd11th61st16th11th33rd6th
Farey Sequence
14th
8th
Fibonacci
22nd
67th22nd286th107th
840th31st
Fizz Buzz
28th54th61st12th1,036th85th9th1,455th41st
Gijswijt’s Sequence
7th22nd4th4th29th5th7th58th6th
Happy Numbers
10th
27th17th138th27th
11th
Happy Numbers (Long)
8th32nd28th11th76th22nd9th200th9th
Leap Years
11th36th26th8th192nd19th4th157th8th
Niven Numbers
14th40th35th17th184th31st1st224th1st
Niven Numbers (Long)
16th42nd31st16th118th18th7th337th8th
Odious Numbers
11th29th33rd12th
6th1st1st9th
Odious Numbers (Long)
10th28th32nd11th58th17th11th1st6th
Pascal’s Triangle
11th44th15th10th123rd17th7th451st13th
Pernicious Numbers
28th
26th1st63rd15th
Pernicious Numbers (Long)
11th29th13th9th46th12th3rd69th9th
Prime Numbers
14th47th42nd16th197th35th16th509th26th
Prime Numbers (Long)
19th38th27th13th103rd23rd8th165th14th
Sierpiński Triangle
2nd22nd8th4th13th14th4th64th5th