Abundant Numbers
511
Abundant Numbers (Long)
512
Arithmetic Numbers
430
Card Number Validation
502
Catalan Numbers
441
Collatz
568
Divisors
576
Evil Numbers (Long)
454
Factorial Factorisation
272
Farey Sequence
434
Fibonacci
522
Fizz Buzz
531
Gijswijt’s Sequence
404
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
363
Niven Numbers
719
Niven Numbers (Long)
833
Odious Numbers
512
Ordinal Numbers
513
Pangram Grep
525
Pascal’s Triangle
266
Pernicious Numbers
325
Prime Numbers
516
Prime Numbers (Long)
605
Recamán
539
Reverse Polish Notation
312
Roman to Arabic
385
Rule 110
274
SI Units
410
√2
200