Abundant Numbers
511
Abundant Numbers (Long)
512
Arithmetic Numbers
430
Card Number Validation
502
Catalan Numbers
441
Collatz
568
Divisors
576
Evil Numbers (Long)
456
Factorial Factorisation
272
Farey Sequence
434
Fibonacci
522
Fizz Buzz
532
Gijswijt’s Sequence
407
Happy Numbers
327
Happy Numbers (Long)
452
Intersection
534
Inventory Sequence
396
ISBN
457
Jacobi Symbol
311
Kaprekar Numbers
493
Kolakoski Sequence
354
Leap Years
440
Leyland Numbers
261
N Queens
372
Niven Numbers
719
Niven Numbers (Long)
832
Odious Numbers
512
Ordinal Numbers
517
Pangram Grep
525
Pascal’s Triangle
266
Pernicious Numbers
324
Prime Numbers
516
Prime Numbers (Long)
605
Recamán
539
Reverse Polish Notation
312
Roman to Arabic
385
Rule 110
275
SI Units
410
√2
200