Abundant Numbers
535
Christmas Trees
508
Cubes
427
Diamonds
409
Divisors
421
773
750
773
477
383
882
502
573
572
284
543
921
Emirp Numbers
449
Evil Numbers
675
Fibonacci
568
812
658
Fizz Buzz
691
Happy Numbers
449
Leap Years
746
Niven Numbers
838
Odious Numbers
671
464
Pascal’s Triangle
613
Pernicious Numbers
413
Prime Numbers
556
Quine
479
467
254
946
Sierpiński Triangle
493