Abundant Numbers
699
Christmas Trees
510
Cubes
408
Diamonds
412
Divisors
420
772
750
772
489
382
881
529
573
603
341
582
919Emirp Numbers
563
Evil Numbers
687
Fibonacci
580
811
657Fizz Buzz
693
Happy Numbers
608
Leap Years
746
Niven Numbers
842
Odious Numbers
684
499
Pascal’s Triangle
612
Pernicious Numbers
421
Prime Numbers
566
Quine
503
466
254
945
Sierpiński Triangle
502