Abundant Numbers
528
Abundant Numbers (Long)
533
Arithmetic Numbers
455
Card Number Validation
516
Catalan Numbers
454
Collatz
575
Divisors
610
Evil Numbers (Long)
519
Factorial Factorisation
295
Farey Sequence
450
Fibonacci
529
Fizz Buzz
549
Gijswijt’s Sequence
422
Happy Numbers
464
Happy Numbers (Long)
475
Intersection
619
Inventory Sequence
413
ISBN
471
Jacobi Symbol
342
Kaprekar Numbers
535
Kolakoski Sequence
385
Leap Years
503
Leyland Numbers
282
N Queens
438
Niven Numbers
807
Niven Numbers (Long)
868
Odious Numbers
609
Ordinal Numbers
537
Pangram Grep
614
Pascal’s Triangle
290
Pernicious Numbers
350
Prime Numbers
555
Prime Numbers (Long)
612
Recamán
576
Reverse Polish Notation
377
Roman to Arabic
411
Rule 110
304
SI Units
473
√2
219