Abundant Numbers
527
Abundant Numbers (Long)
532
Arithmetic Numbers
455
Card Number Validation
514
Catalan Numbers
453
Collatz
574
Divisors
610
Evil Numbers (Long)
519
Factorial Factorisation
296
Farey Sequence
450
Fibonacci
528
Fizz Buzz
549
Gijswijt’s Sequence
422
Happy Numbers
463
Happy Numbers (Long)
475
Intersection
617
Inventory Sequence
413
ISBN
471
Jacobi Symbol
341
Kaprekar Numbers
535
Kolakoski Sequence
385
Leap Years
502
Leyland Numbers
282
N Queens
438
Niven Numbers
807
Niven Numbers (Long)
867
Odious Numbers
608
Ordinal Numbers
537
Pangram Grep
612
Pascal’s Triangle
290
Pernicious Numbers
350
Prime Numbers
555
Prime Numbers (Long)
611
Recamán
576
Reverse Polish Notation
377
Roman to Arabic
411
Rule 110
304
SI Units
473
√2
219